JMW3430LM - Oven JENN-AIR - Free user manual and instructions

USER MANUAL JMW3430LM JENN-AIR

Tech Manual Do not remove or destroy W11398798A 08/20 WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DANGER Electrical Shock Hazard Only authorized technicians should perform diagnostic voltage measurements. After performing voltage measurements, disconnect power before servicing. Failure to follow these instructions can result in death or electrical shock. Voltage Measurement Safety Information When performing live voltage measurements, you must do the following: ■ Verify the controls are in the off position so that the appliance does not start when energized. ■ Allow enough space to perform the voltage measurements without obstructions.■ Keep other people a safe distance away from the appliance to prevent potential injury.■ Always use the proper testing equipment.■ After voltage measurements, always disconnect power before servicing.FOR SERVICE TECHNICIAN’S USE ONLY

IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics ESD problems are present everywhere. ESD may damage or weaken the electronic control assembly. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress. ■ Use an antistatic wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance -OR- Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance. ■ Before removing the part from its package, touch the antistatic bag to a green ground connection point or unpainted metal in the appliance. ■ Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.

When repackaging failed electronic control assembly in antistatic bag, observe above instructions.3

POSSIBLE EXPOSURE TO EXCESSIVE

MICROWAVE ENERGY a. Do not operate or allow the oven to be operated with the door open. b. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:

3. Seal and Sealing Surfaces (Arcing, Wear and Other Damage)

4. Damage to or Loosening of Hinges and Latches

5. Evidence of Dropping or Abuse

c. Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, waveguide or transmission line, and cavity for proper alignment, integrity and connections. d. Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in service manual before the oven is released to the owner. e. A microwave leakage check to verify compliance with the CSA should be performed on each oven prior to release to the owner. f. Do not attempt to operate the oven if the door glass is broken.FOR SERVICE TECHNICIAN’S USE ONLY

Diagnostics IMPORTANT: Before powering MWO magnetron, be surethat a load, such as a microwave-safe cup of water, is present in the microwave oven cavity. Unplug oven or disconnect power before performing thefollowing checks: ■ A potential cause of a control not functioning is corrosion on connections. Observe connections and check for continuity with an ohmmeter. ■ All tests/checks should be made with a VOM or DVM having a sensitivity of 20,000 Ω per volt DC or greater. ■ Check all connections before replacing components, looking for broken or loose wires, failed terminals, or wires not pressed into connectors far enough. Damaged harness must be entirely replaced. Do not rework a harness. ■ Resistance checks must be made with power cord unplugged from outlet, and with wiring harness or connectors disconnected. IMPORTANT: Do not replace the control if there is no evidence of any failure. To Enter Diagnostics Mode: Before proceeding with any corrective action, perform the following steps to enter the Diagnostics mode.

1. Enter Diagnostics mode by pressing LOWER OVEN>LOWER

LIGHT>OVEN CANCEL (repeat twomore times) TIP: You can also swipe your nger from left to right overthe buttons 3 times. NOTE: You do not need to wait for any audible or visual feedback from the control between keypad presses.

2. If control does not enter Diagnostics, continue repeating the keypad

sequence from Step 1. All the keypads will light up when the control enters Diagnostics.

3. From the Diagnostic menu, scroll to the desired selection using the touch

screen. Error Diagnostics: View and clear the failure history. Component Activation: Manually activate each relay. Sensors & Switches: View the traditional oven cavity temperatures and door/latch switch status. System Information: View the model number, serial number, and software versions. Wi-Fi: View Wi-Fi related content such as IP Address, Gateway, SSID, and connection status. Exit Diagnostics General Procedure: Error Codes NOTE: All failures are stored in the failure history. To check if the error code is still present, start a cooking function and wait 1 minute to check if the error appears.

1. Plug in oven or connect power.

2. Enter Diagnostics mode.

3. Touch or scroll to “Error Diagnostics” in the Diagnostics menu, and then

General Procedure: Component Activation

1. Plug in oven or connect power.

3. Touch or scroll to “Component Activation” in the Diagnostics menu, and

4. Touching the following selections will activate/ deactivate corresponding

relay. Selection Relay MW Light MW Light Relay MW Turntable MW Turntable Relay MW Cooling Fan MW Cooling Fan Relay MW Grill MW Broil Element Relay MW Convection Element MW Convection ElementRelay MW Convection Fan MW Convection fan Relay MW Magnetron/Cooling Fan MW Magnetron and MWCooling Fan Relay Oven Bake Element Oven Bake Element Relay Oven Broil Element Oven Broil Element Relay Convection Element-Up Upper Convection ElementRelay Convection Element-Low Lower Convection ElementRelay Convection FanHS-Up Upper High Speed Convection Fan Relay Convection FanLS-Up Upper Low Speed ConvectionFan Relay Convection FanHS-Low Lower High Speed ConvectionFan Relay Convection FanLS-Low Lower Low Speed ConvectionFan Relay Oven Cooling FanHigh Speed Oven Cooling Fan HighSpeedRelay Oven Cooling FanLowSpeed Oven Cooling Fan LowSpeedTriac Oven Light Oven Light Triac Oven Door LatchMotor Oven Door Latch Motor Relay General Procedure: Sensors & Switches NOTE: This procedure is to view the current status of oven switches and sensor readings. Display Status MW Door Switch Open or Closed MW Cavity Temperature Degrees in Celsius Oven Door Switch Open or Closed Oven Latch Switch Open or Closed Oven Cavity Temperature Degrees in Celsius Oven Meat Probe Temperature Degrees in Celsius

1. Plug in oven or connect power.

2. Enter Diagnostics mode.

3. Touch or scroll to “Sensors & Switches” in the Diagnostics menu, and

4. Touch or scroll through the Sensors & Switches menu to view the desired

Microwave Oven Appliance Control Unit Software Version Diagnostics Entries Number of times Diagnostic menu has been entered

1. Plug in oven or connect power.

4. Touch or scroll through the System Information menu to view the desired

status. NOTE: Touching “Back” will return the display to the main Diagnostics menu. General Procedure: Model Selection NOTE: When a new User Interface is installed, you will beprompted to select a new model number upon powerup. To change the model number on an existing UI,follow the steps below.

1. Plug in oven or connect power.

4. Touch or scroll to “Model Number,” and then touch“OK.”

5. Touch or scroll to the correct model number inthelist, and then touch

“Select.”7 Failure/Error Display Codes No Display - control is blank Switch Mode Power Supply (SMPS), User Interface (UI)

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On).

1. Unplug oven or disconnect power.

2. Remove plastic cover from UI. Check connection from display to UI.

3. Check wiring from main line to SMPS (CONN 7).

4. Check connection from wiring harness to UI (J15).

5. Check proper voltage input at J15-2 (GND) to J15-4 (14 VDC) on the UI

by completing the following steps:

6. Connect voltage measurement equipment to J15-2 and J15-4 on UI.

7. Plug in oven or reconnect power.

8. Measure voltage and conrm voltage reading is 14VDC. If voltage is

correct, unplug oven or disconnect power and go to Step 13. If voltage isnotcorrect, go to Step 9.

9. Unplug oven or disconnect power. Replace theSMPS.

10. Reassemble all parts and panels before operating.

11. Plug in oven or reconnect power.

12. Check for control board display. If still no display, unplug oven or

13. Replace HMI-Central/UI board.

14. Reassemble all parts and panels before operating.

15. Plug in oven or reconnect power. If the UI was replaced, follow the on-

screen prompts to select themodel number.

16. Verify operation is normal. If problem persists, replacethe Control Panel

Assembly and repeat steps14 through 16.

User Interface not reacting to touch Control Panel Assembly

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On).

1. Enter the Diagnostic menu, and then touch POWER.

2. To reset Touch Calibration: unplug oven or disconnect power, wait

10seconds, and then pluginoven or reconnect power. If still no response, go to Step 3.

3. Unplug oven or disconnect power.

4. Replace Control Panel Assembly.

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. Verify operation is normal.

No Sound Speaker, Control Panel Assembly

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On).

1. Verify sound is enabled. Touch the Tools menu, and then scroll to the

Sound menu. Conrm Key Press, Timer & Alert, and Power On & Off actions are all turned on and set to the desired volume.

2. Unplug oven or disconnect power.

3. Conrm the speaker is rmly connected to the HMI-Central/UI board at

J8. If speaker is rmly connected, go to Step 4. If speaker connection isloose, reconnect and proceed to Step 5.

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. Conrm operation of the speaker. If problem persists, unplug oven or

disconnect power, replace Control Panel Assembly, and repeat steps 5 through 7. HMI-C User Interface Speaker

F1 Internal E0 Oven user interface (UI) failure

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.” NOTE: If other error codes are stored, troubleshoot those other error codes rst.

1. Unplug oven or disconnect power.

2. Conrm the control panel assembly is grounded to the oven chassis. If it

is, go to Step 6. If it is not, x the connection.

3. Reassemble all parts and panels before operating.

4. Plug in oven or reconnect power and cycle power.

5. If error persists, unplug oven or disconnect power.

6. Replace HMI-Central/UI board.

7. Reassemble all parts and panels before operating.

8. Plug in oven or reconnect power and cycle power.

9. If error persists after HMI-Central/UI board is replaced, unplug oven or

disconnect power and replace Control Panel Assembly.

10. Reassemble all parts and panels before operating.

11. Plug in oven or reconnect power. Follow the on-screen prompts for model

12. Verify operation is normal. Enter Diagnostics mode, select “Error

Diagnostics,” and clear the history. If the Control Panel Assembly was replaced, there is no need to clear the error history.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics mode and selecting “Error Diagnostics.” NOTE: If other error codes are stored, troubleshoot those other error codes rst.

1. Unplug oven or disconnect power.

2. Replace the Copernicus Appliance Manager.

3. Reassemble all parts and panels before operating.

4. Plug in oven or reconnect power.

5. If error persists after Copernicus Appliance Manager is replaced, unplug

oven or disconnect power, and then go to Step 6. If not, go to Step 9.

6. Replace Control Panel Assembly.

7. Reassemble parts and panels before operating.

8. Plug in oven or reconnect power.

9. Follow the on-screen prompts to select the modelnumber

10. Verify operation is normal. Enter Diagnostics mode, select “Error

Diagnostics,” and clear the history. If the Control Panel Assembly was replaced, there is noneed to clear the error history.FOR SERVICE TECHNICIAN’S USE ONLY

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Make sure that all interlock switches works properly: when door is open,

microwave light is On; when dooris closed, microwave light is Off.

2. Unplug oven or disconnect power.

3. Check the following on the Microwave ApplianceManager:

a. Wire connections to Relay 4903. b. Check if Relay 4903 is shorted. If so then gotoStep 7.

4. Reassemble all parts and panels before operating.

5. Plug in oven or reconnect power.

6. To check if the error code is still present, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Wait 1minute to check if the error appears. If error remains, go to Step 7. If not, go to Step

7. Unplug oven or disconnect power and replace the Microwave Appliance

8. Reassemble all parts and panels before operating.

9. Plug in oven or reconnect power.

10. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear thehistory.

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Make sure that all interlock switches works properly: when door is open,

microwave light is On; when dooris closed, microwave light is Off.

2. Unplug oven or disconnect power.

3. Check the following on the Microwave ApplianceManager:

a. Relay 4903. b. Connector P8.

4. Check the following connections on the Inverterboard:

Microwave Inverter Board.

6. Reassemble all parts and panels before operating.

7. Plug in oven or reconnect power.

8. To check if the error code is still present, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Wait 1minute to check if the error appears. If error remains, then go to Step 9. If not, go to Step 17.

9. Unplug oven or disconnect power.

10. Replace the Magnetron.

11. Reassemble all parts and panels before operating.

12. Plug in oven or reconnect power.

13. To check if the error code is still present, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Wait 1minute to check if the error appears. If error remains, then go to Step 14. If not, go to Step 17.

14. Unplug oven or disconnect power and replace theMicrowave ACU.

15. Reassemble all parts and panels before operating.

16. Plug in oven or reconnect power.

17. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear thehistory.

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Make sure that all interlock switches works properly: when door is open,

microwave light is On; when dooris closed, microwave light is Off.

2. Unplug oven or disconnect power.

3. Check the following connections on the Microwave ApplianceManager:

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. To check if the error code is still present, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Wait 1minute to check if the error appears. If error remains, then go to Step 8. If not, go to Step 16.

8. Unplug oven or disconnect power and replace theInverter Board.

9. Reassemble all parts and panels before operating.

10. Plug in oven or reconnect power.

11. To check if the error code is still present, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Wait 1minute to check if the error appears. If error remains, then go to Step 12. If not, go to Step 16.

12. Unplug oven or disconnect power.

13. Replace the Microwave ACU.

14. Reassemble all parts and panels before operating.

15. Plug in oven or reconnect power.

16. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear thehistory.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics mode and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Check that connectors J4, J5, J6, and J7 are rmly connected. If they are

not, go to Step 3. If they are, go to Step 6.

3. Reconnect any loose connectors.

4. Reassemble all parts and panels before operating.

5. Plug in oven or reconnect power. If the failure is gone, go to Step 9. If the

failure is still present, unplug oven or disconnect power.

6. Replace the Control Panel Assembly.

7. Reassemble all parts and panels before operating.

8. Follow the on-screen prompts to select the model number

9. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history. If the Control Panel Assembly was replaced, there is no need to clear the error history. HMI Right J7J5 J15 User Interface J4J6 HMI Left Control Panel Assembly

Sensors E0 Main oven sensor openorshorted

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Disconnect connector P3 from Oven Appliance Manager, and measure

the resistance of the sensor between P3-1 and P3-2. Test for 1000 Ω to 1200 Ω at 77°F (25°C). Check sensor for short to ground. If checks on sensor are not correct, replace sensor and repeat the checks.

3. Reassemble all parts and panels and plug in oven orreconnect power.

4. Enter Diagnostics menu and select “Sensors & Switches” to verify if the

temperature shown in the Cavity Temperature display is correct (ambient temperature). If it is, go to Step 8. If it is not, unplug oven or disconnect power. NOTE: On the status screen, the unit of measurement is Celsius.

5. Replace the Copernicus Appliance Manager board.

6. Reassemble all parts and panels before operating.

7. Plug in oven or reconnect power.

8. Verify operation is normal. Enter Diagnostics menu, select “Error

Diagnostics,” and clear the history.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Remove meat probe if connected.

3. Disconnect connector P3 from Copernicus ApplianceManager.

4. Check connector jack resistance between P3-3 and P3-4. If it is 0 Ω,

change the jack assembly, and then go to Step 5. If it is not 0 Ω, the jack assembly is working properly. Go to Step 5.

5. Plug in the meat probe and check for short to ground or open. If checks

on meat probe are not correct, replace the meat probe. At 77°F (25°C) the expected value is approximately 50 kΩ. If they are correct, replace the Copernicus Appliance Manager.

6. Reassemble all parts and panels before operating.

7. Plug in oven or reconnect power.

8. Verify operation is normal. Enter Diagnostics menu, select “Error

Diagnostics,” and clear the history. Check the meat probe reading by entering Diagnostics menu and selecting “Sensors & Switches.” The meat probe should detect the ambient temperature. Copernicus Appliance Manager Oven Temperature Sensor

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function that uses the temperature sensor, such as a Convect cycle. Wait 1minute, and then verify that the failure happens again.

1. Unplug oven or disconnect power.

2. Check that the P22 connection of the Microwave Appliance Manager is

rmly connected. If it is, go to Step 3. If it is not, reconnect and go to Step 5.

3. Disconnect connector P22 from the Microwave Appliance Manager, and

measure the resistance of the thermistor. It should be (approximately) 230kΩ at77°F ± 10°F (25°C ± 10°C).

4. Check thermistor for short to ground. If check on thermistor is not

correct, replace the thermistor. If thermistor check is correct, replace the Microwave Appliance Manager.

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history.

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Unplug oven or disconnect power.

2. Check that the P21 connection of the Microwave Appliance Manager is

rmly connected. If it is, go to Step 3. If it is not, reconnect and go to Step 5.

3. Disconnect connector P21 from the Microwave Appliance Manager, and

measure the resistance of the thermistor. It should be (approximately) 10kΩ at77°F ± 10°F (25°C ± 10°C).

4. Check thermistor for short to ground. If check on thermistor is not

correct, replace the thermistor. If thermistor check is correct, replace the Microwave Appliance Manager.

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history. P22

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function that uses the humidity sensor, such as a Steam cycle. Wait 1minute, and then verify that the failure happens again.

1. Unplug oven or disconnect power.

2. Check that the P23 connection of the Microwave Appliance Manager is

rmly connected. If it is, go toStep 3. If it is not, reconnect and go to Step 5.

3. Disconnect connector P23 from Microwave Appliance Manager and

measure the resistance of the sensor: Between pins 3 and 1. It should be approximately 2800 Ω at 77°F ± 10°F (25°C ± 10°C). Between pins 3 and 2. It should be approximately 2800 Ω at 77°F ± 10°F (25°C ± 10°C).

4. Check sensor for short to ground. If checks on sensor are not correct,

replace the sensor. If sensor checks are correct, replace the Microwave Appliance Manager.

5. Reassemble all parts and panels before operating.

6. Plug in oven or reconnect power.

7. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history.

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Unplug oven or disconnect power.

2. Check the following:

a. Cooling fan connection for any loose connectors. b. Oven installation and make sure there is no air blockage at the bottom vent.

3. Reassemble all parts and panels before operating.

4. Plug in oven or reconnect power.

5. To check if the cooling fan is stalled, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Make sure the fan is running. If it is not, unplug oven or disconnect power, replace the fan and go to Step 8. Ifit is, go to Step 6.

6. Unplug oven or disconnect power.

7. Replace the inverter board.

8. Reassemble all parts and panels before operating.

9. Plug in oven or reconnect power.

10. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history. Microwave Appliance Manager Humidity Sensor

NOTE: Before starting any test, cycle power to the oven (power Off, wait 10seconds, and then power On). After powering on, be sure that a load, such as a microwave-safe cup of water, is present in the microwave oven cavity, and start a microwave cooking function. Wait 1minute, and then verify that the failure happens again.

1. Unplug oven or disconnect power.

2. Check the following:

a. Cooling fan connection for any loose connectors. b. Oven installation and make sure there is no air blockage at the bottom vent.

3. Reassemble all parts and panels before operating.

4. Plug in oven or reconnect power.

5. To check if the cooling fan is stalled, be sure that a load, such as a

microwave-safe cup of water, is present in the microwave oven cavity, and start a cooking function in the microwave oven. Make sure the fan is running. If it is not, unplug oven or disconnect power, replace the fan and go to Step 8. Ifit is, go to Step 6.

6. Unplug oven or disconnect power.

7. Replace the Magnetron and the inverter board.

8. Reassemble all parts and panels before operating.

9. Plug in oven or reconnect power.

10. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Enter the Diagnostics menu and select “Component Activation.” Touch

or scroll to “Door Latch Motor,” and then touch “OK.” Touch “Latch Door.” Wait at least 15 seconds, and then check if latch status changes on screen. If status does not change, unplug oven or disconnect power and go to Step 2. If status changes, unplug oven or disconnect power and go to Step 5.

2. If the oven door did not unlatch, unplug connector P3 and check for

continuity (on the latch wire) between P3-5 and P3-7.

3. Disconnect J8 connector from Copernicus Appliance Manager.

4. Measure the resistance between connectors J8-2 and P5-1. It should be

500 Ω to 3000 Ω at 77°F (25°C).

5. If the resistance check is outside the range, replace the affected door

latch assembly. Verify that the error is gone.

6. Reassemble all parts and panels.

7. Plug in oven or reconnect power.

8. Enter the Diagnostics menu and select “Component Activation.” Check

the door status on the screen by opening and closing the oven door.

9. If status does not change, unplug the oven or disconnect power.

10. Check for continuity with door open and closed at P3-5 to P3-6. Door

open = innite resistance. Door closed = zero resistance.

11. If continuity check is not correct, replace the door latch assembly. If all

checks were correct, replace Copernicus Appliance Manager.

12. Reassemble all parts and panels before operating.

13. Plug in oven or reconnect power.

14. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Enter the Diagnostics menu and select “Component Activation.” Touch or

scroll to “Door Latch Motor,” and then touch “OK.” Touch “Latch Door.” Wait at least 15 seconds, and then check if latch status changes on screen. If status does not change, go to Step 2. If status changes, unplug oven or disconnect power, replace Copernicus Appliance Manager and go to Step 6.

2. If latch status on screen is “open,” unplug oven ordisconnect power and

check for loose harness connection between motor latch switch and P3-5 andP3-7.

3. Disconnect connector J8 from Copernicus ApplianceManager.

4. Measure the resistance between connectors J8-2 and P5-1. It should be

500 Ω to 3000 Ω at 77°F (25°C).

5. If the resistance check is outside the range, replace the door latch

assembly. Verify that the error is gone. If all checks were correct, replace Copernicus Appliance Manager.

6. Reassemble all parts and panels before operating.

7. Plug in oven or reconnect power.

8. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history.

E0 Oven user interface - lostcommunication E6 Oven appliance manager - lostcommunication

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics mode and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Check continuity of wirings between P1-4 and J15-3, then P1-5 and

3. Check for continuity between P1-1 and P1-2.

4. If all checks are correct, replace Copernicus Appliance Manager.

5. Reassemble all parts and panels.

6. Plug in oven or reconnect power.

7. If the error appears again, unplug oven or disconnectpower.

8. Replace the HMI-Central/UI board.

9. Reassemble all parts and panels before operating.

10. Plug in oven or reconnect power.

11. Follow the on-screen prompts to select the model number if the UI was

12. Verify operation is normal. Enter Diagnostics menu, select “Error

Diagnostics,” and clear the history. Copernicus Appliance Manager

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Check for elements shorted to ground. Checkresistance of elements:

4. Check for shorted relays.

Disconnect PX1, PX2 and PX4 connectors and check for shorts between: a. PX1-1 and PX1-2 (Bake relay). b. PX1-3 and PX1-4 (Up Convect relay). c. PX4-1 and PX4-2 (Broil relay). d. PX2-3 and PX2-4 (Low Convect relay).

5. If there is a shorted relay, replace the Copernicus Appliance Manager

control. Go to Step 9.

6. If everything is correct, disconnect connector P3 from the Copernicus

7. Measure the resistance of the oven sensor. It should be 1000 Ω to1200 Ω

8. Check sensor for short to ground. If checks on sensor are not correct,

replace the sensor and repeat the checks.

9. Reassemble all parts and panels before operating.

10. Plug in oven or reconnect power.

11. Enter the Diagnostic menu and select “Sensors & Switches” to verify

that the corresponding oven temperature displayed is correct (ambient temperature). If not, unplug oven or disconnect power, and replace the Copernicus Appliance Manager board. NOTE: On the status screen, the unit of measurementis Celsius.

12. Reassemble all parts and panels before operating.

13. Plug in oven or reconnect power.

14. Verify operation is normal. Enter Diagnostics menu, select “Error

Diagnostics,” and clear the history. K11 K10

Upper Convect - 3400 W YLYL

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Replace Copernicus Appliance Manager.

3. Reassemble all parts and panels before operating.

4. Plug in oven or reconnect power.

5. Cycle power. If error persists after the Copernicus Appliance Manager is

replaced, unplug oven or disconnect power. Go to Step 7.

6. If the error is gone, go to Step 10.

7. Replace the HMI-Central/UI board.

8. Reassemble parts and panels before operating.

9. Plug in oven or reconnect power, and follow the

on-screen prompts for model selection.

10. Verify operation is normal. If operation is normal, goto Step 14. If error

still exists, go to Step 11.

11. Unplug oven or disconnect power.

12. Replace the control panel assembly.

13. Plug in oven or reconnect power.

14. Follow the on-screen prompts for model selection.

15. Verify operation is normal. Enter Diagnostics mode, select “Error

Diagnostics,” and clear the history.

FAILURE ERROR LIKELY FAILURE CONDITION

F6 E8 Lost communications with Microwave Oven Appliance Manager

SUGGESTED CORRECTIVE ACTION PROCEDURE

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Make sure the oven is plugged in. Open microwave door to check if light

2. Ensure the Sabbath mode is disabled.

3. Unplug oven or disconnect power.

4. Check the connection between Oven User Interface Board J15-2 (yellow)

and J15-3 (orange) and Microwave Appliance Manager P26-3 (orange) andP26-4 (yellow).

5. If harness is correct, replace the Microwave Appliance Manager.

6. Reassemble all parts and panels before operating.

7. Plug in oven or reconnect power.

8. If the error appears again, unplug or disconnect power and replace HMI-

9. Reassemble all parts and panels before operating.

10. Plug in oven or reconnect power.

11. Follow the on-screen prompts to select the modelnumber if the UI was

12. Verify operation is normal. Enter the Diagnostics menu, select “Error

Diagnostics,” and clear the history. FAILURE (Left-most 2 Clock digits) ERROR (Right-most 2 Clock digits)

1. Unplug oven or disconnect power.

2. Wait for at least 30 seconds.

3. Plug in oven or reconnect power.

4. Enter Diagnostics mode and navigate to the Component Activation list.

5. Turn on the Cooling Fan Low Speed.

6. Check for proper voltage input at P5-5 and neutral for high speed fan,

P5-4 and neutral for low speed fan when cooling fan should be running by completing following steps.

7. Unplug oven or disconnect power.

8. Connect voltage measurement equipment.

9. Plug in oven or reconnect power. Measure voltage and conrm voltage

reading is 120 V. If it is not, unplug oven or disconnect power and go to Step 13. If it is, go to Step 10.

10. Check for proper voltage input at P4-1 and P4-2 and conrm voltage

reading is 5 VDC. If it is not, unplug oven or disconnect power and go to Step 13. If it is, go to Step 11.

11. Unplug oven or disconnect power.

12. Replace cooling fan. Go to Step 15.

13. Check integrity of all harness wires and connections between the oven

appliance manager and the cooling fan. Ensure no shorted wires to chassis. If the wiring is pinched or damaged, replace the cooling fan harness. Go to Step 15. If the wiring is good, go to Step 14.

15. Replace all parts and panels before operating.

16. Plug in oven or reconnect power.

17. Enter into Diagnostics mode and verify that fan speed is running within

oven. (High speed: 1000-3300, Low speed: 400-3000) Once Fan Speed is completed, navigate back to the activation list and activate the Cooling Fan High Speed and return to “More Information” screen for fan speed.

NOTE: Before starting any test, cycle power to the oven(power Off, wait 10seconds, and then power On). PROCEDURE: Before proceeding, verify the error codeby entering the Diagnostics menu and selecting “Error Diagnostics.”

1. Unplug oven or disconnect power.

2. Access the electrical wiring from the house power supply to the oven.

3. Check house wiring to the product. Check to see ifthe neutral connection

is switched with L1 or L2(refer to the installation instructions for productwiring).

4. Reassemble all parts and panels before operating.

5. Plug in oven or reconnect power.

6. Verify operation is normal by running a cooking function. Enter

Diagnostics menu, select “Error Diagnostics,” and clear the history.

A. Convect motor B. Convect thermostat (behind cover) C. Convect element D. Line filter E. Humidity sensor F. Magnetron fan motor G. Copernicus appliance manager (lower oven) H. Switch mode power supply (SMPS)

J. Control panel assembly K. WiFi antenna25 Cooling Fan Relay Logic Oven High Speed Blower (Main/Upper or Lower) Oven Low Speed Blower (Main/Upper or Lower) Oven Cooking - Cold - O Oven Cooking - Warm - O Oven Cooking - Hot O - Oven Self-Clean O - LEGEND Cold Cavity Temperature is less than 212°F (100°C) Warm Cavity Temperature is between 212°F and 599°F (100°C and 315°C) Hot Cavity Temperature is greater than 599°F (315°C)FOR SERVICE TECHNICIAN’S USE ONLY

Mode Bake Broil Upper Convect Ring Lower Convect Ring Upper Convect Fan Lower Convect Fan Convect Frozen Pizza C C C C O O Convect Pastry C C C C C C Convect Slow Roast 12 hrs C C C C O O Convect Slow Roast 8 hrs C C C C O O Convect Slow Roast 4 hrs C C C C O O Convect Roast C C C C O O Convect Broil - C - - C C Convect Bake C C C C C C Convect Bake- Rapid Preheat C C C C C C Bake C C C C C C Broil - C - - - - Keep Warm C C - - C C Rapid Proof C C - - - - Proof C C - - - - No Preheat C C C C C C True Convect C C C C C C Self Clean C C - - - - LEGEND Relay Off Relay Cycles Relay On Not Available - C O NA27 Component Testing Chart - Oven To properly check for voltage, complete the following steps:

1. Unplug oven or disconnect power.

2. Connect voltage measurement equipment tocheckpoints.

3. Plug in oven or reconnect power and conrmvoltagereading.

4. Unplug oven or disconnect power.

Component Serviceable Side Check Points Copernicus Results-Resistance Results-Voltage Lights Front P7-1 to L1 (J8-1) 0-40 Ω 120 V Latch Switch Front P3-7 to P3-5 Open circuit Door Switch Front P3-6 to P3-5 Closed circuit with oven door closed Latch Motor Front P5-1 to N (J8-2) 500 to 3000 Ω 120 V motor running Oven Temperature Sensor Front P3-1 to P3-2 1075 Ω at 68°F (20°C) DLB Meat Probe Side P3-3 to P3-4 9876-10075 Ω Blower Motor - HighSpeed Rear PX2-2 to L1 (J8-1) 15 to 23 Ω 120 V motor running Blower Motor - LowSpeed Rear P7-2 to L1 (J8-1) 15 to 23 Ω 120 V motor running Thermal Limiter Rear PX3-1 to L2 (Main line) Closed circuit 0 V closed, N/A open Upper Convection Fan-High Speed Rear P5-3 to N (J8-2) 15 to 22 Ω 120 VAC motor running Upper Convection Fan-Low Speed Rear P5-2 to N (J8-2) 17 to 25 Ω 120 VAC motor running Lower Convection Fan-High Speed Rear P5-5 to N (J8-2) 15 to 22 Ω 120 VAC motor running Lower Convection Fan-Low Speed Rear P5-4 to N (J8-2) 17 to 25 Ω 120 VAC motor runningFOR SERVICE TECHNICIAN’S USE ONLY

Component Serviceable Side Check Points Copernicus Results-Resistance Results-Voltage Upper Convection Element Front PX1-3 to PX3-2 15.2 to 17.3 Ω 240 VAC Convection cycleoperating Lower Convection Element Front PX2-4 to PX3-2 15.2 to 17.3 Ω 240 VAC Convection cycleoperating Bake Element Rear PX1-1 to PX3-2 19.0 to 21.6 Ω 240 V Bake cycle operating Broil Element Front PX4-2 to PX3-2 13.5 to 14.92 Ω 240 V Broil cycle operating User Interface Board Front J15-2 to J15-4 N/A 14 VDC Copernicus Appliance Manager Side (Combo) P1-2 to P1-5 N/A 14 VDC NOTES: ■ Disconnect the harness from the board before performing measurements. ■ See the following table for connector pin identication.29 Copernicus Appliance Manager Harness Connector Pin Copernicus Appliance Manager Pin PX3 Pin 1 Pin 1 Pin 1 Pin 1 PX4 PX1-4 PX1-4 PX1-3 PX1-2 PX1-1 Pin 1 Pin 1 Pin

Component Testing Chart - Microwave Component Serviceable Side Procedure Results - Resistance Component Location Appliance Manager Top Check wiring to MW microwave appliance manager:

1. Unplug the microwave oven or disconnect power.

2. Visually inspect connectors on the microwave

appliance manager, P1, P2, P8, P21, P22, P23, P26, P354, P355 and the top connectors (relays 4903, 4904 and 4905) to see whether there are signs of overheating or any signs of failure due to loose wires, bad crimping, etc.

3. Reassemble all parts and panels before operating.

4. Plug in microwave oven or reconnect power.

Cavity Thermostat Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

2. Remove wire leads.

3. Measure resistance (ohmmeter scale: Rx1).

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Turntable Motor Bottom 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance (ohmmeter scale: Rx1).

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal =2500 Ω (approximately) Abnormal = Innite J31 Component Serviceable Side Procedure Results - Resistance Component Location Monitor Fuse Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = Continuity Abnormal = Innite Not shown MW Light Transformer Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance (ohmmeter scale: Rx1).

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Primary Winding = 40 Ω (approximately) Secondary Winding =

0.4 Ω (approximately)

Line Fuse Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Component Serviceable Side Procedure Results - Resistance Component Location Primary Interlock Switch Top Test 1:

1. Unplug microwave oven or disconnect power.

2. Disconnect the wires at the Primary Interlock Switch.

3. Check from the common terminal (brown wire) to the

normally open terminal (yellow wire).

4. Reconnect the wires at the Primary Interlock Switch.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Test 1: Door Open = Innite. Door Closed = Continuity.

1. Unplug microwave oven or disconnect power.

2. Disconnect the wires at the Primary Interlock Switch.

3. Check from the common terminal (brown wire) to the

normally closed terminal (blue wire).

4. Reconnect the wires at the Primary Interlock Switch.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Test 2: Door Open = Continuity. Door Closed = Innite Secondary Interlock Switch Top 1. Unplug microwave oven or disconnect power.

2. Disconnect the wires at the Secondary Interlock

3. Check from the common terminal (blue wire) to the

normally open terminal (white wire).

4. Reconnect the wires at the Secondary Interlock

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Door Open = Continuity. Door Closed = Innite I33 Component Serviceable Side Procedure Results - Resistance Component Location Monitor Interlock Switch Top 1. Unplug microwave oven or disconnect power.

2. Disconnect the wires at the Monitor Interlock Switch.

3. Check from the common terminal (yellow wire) to the

normally closed terminal (blue wire).

4. Reconnect the wires at the Monitor Interlock Switch.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Door Open = Continuity. Door Closed = Innite

Halogen Light Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = approximately 3 Ω Abnormal = Innite

1. Unplug microwave oven or disconnect power.

2. Visually inspect 4 connectors on the MW inverter

boards, CN701, CN702, CN703 and E701 to see whether there are signs of overheating or any signs of failure due to loose wires, bad crimping, etc.

3. Reassemble all parts and panels before operating.

4. Plug in microwave oven or reconnect power.

Magnetron Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads. Check that the seal is in good

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Filament Terminals Normal = <1 Ω Filament to Chassis Normal = Innite

Component Serviceable Side Procedure Results - Resistance Component Location Line Filter Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

P31 to P32, P33toP34 Normal >/= 300 kΩ Abnormal </= 100 kΩ P31 to P34, P32 to P33 Normal = 0 Ω Abnormal >/= 100 kΩ

Humidity Sensor Top 1. Unplug microwave oven or disconnect power.

2. Remove the 3-pin connector from MW Appliance

3. Measure resistance across pins 1 and 3 andacross

4. Replace the 3-pin connector from MWAppliance

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = 2.8 kΩ (approximately) at 77°F +/- 10°F (25°C +/- 10°C) Abnormal = Innite.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = 10 kΩ (approximately) at 77°F +/- 10°F (25°C +/-10°C) Abnormal = Innite.

Grill Thermostat Top 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = Continuity Abnormal = Innite U35 Component Serviceable Side Procedure Results - Resistance Component Location Convect Thermostat Rear 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Broil Element Rear 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Convect Element Rear 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Cavity Temperature Sensor Rear 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

Normal = 230 kΩ (approximately) at 77°F ±10°F (25°C ±10°C) Abnormal = Innite

Convect Fan Motor Rear 1. Unplug microwave oven or disconnect power.

2. Remove wire leads.

3. Measure resistance.

4. Replace wire leads.

5. Reassemble all parts and panels before operating.

6. Plug in microwave oven or reconnect power.

W11398798A ©2020 All rights reserved. For patent information, please see Pat. www.patent-listing.com W11398798A NOTE: This sheet contains important Technical Service Data.

6. HMI-central/carte IU.