MWH403 - Microwave WHIRLPOOL - Free user manual and instructions
Find the device manual for free MWH403 WHIRLPOOL in PDF.
| Brand | Whirlpool |
| Model | MWH403 |
| Product Type | Countertop Microwave Oven |
| Capacity | 0.9 cu ft (25 L) |
| Power Output | 900 W |
| Input Power | 1350 W |
| Voltage | 230 V / 50 Hz |
| Frequency | 2450 MHz |
| Dimensions (External) | 480 x 400 x 280 mm |
| Dimensions (Internal) | 330 x 330 x 210 mm |
| Weight (Net) | 11.5 kg |
| Turntable Diameter | 25 cm |
| Control Type | Digital Touchpad |
| Display | LED Digital Display |
| Cooking Modes | Auto Cook, Defrost, Timer, Quick Start |
| Child Lock | Yes |
| Interior Light | Yes |
| Door Type | Side Hinge |
| Color | Stainless Steel |
| Energy Efficiency | Class A |
| Noise Level | 50 dB(A) |
| Cleaning | Wipe with damp cloth |
| Safety Features | Child Lock, Overheat Protection |
| Spare Parts Availability | Available from Whirlpool Service |
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USER MANUAL MWH403 WHIRLPOOL
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Line drawing of a mechanical component with three cylindrical pins and a central shaft (no text or symbols)natural_image
Symbol of a trash bin with crossed lines indicating no waste or discharge (no text or labels)Read these instructions carefully before using your microwave oven, and keep it for future reference.
SAVE THESE INSTRUCTIONS CAREFULLY
If there is any inconsistency or ambiguity between the English version and the Chinese version, the English version shall prevail.
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
(a) Do not attempt to operate this oven with the door open since this can result in harmful exposure to microwave energy. It is important not to break or tamper with the safety interlocks.
(b) Do not place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on sealing surfaces.
(c) WARNING: If the door or door seals are damaged, the oven must not be operated until it has been repaired by a competent person.
ADDENDUM
If the apparatus is not maintained in a good state of cleanliness, its surface could be degraded and affect the lifespan of the apparatus and lead to a dangerous situation.
Specifications
| Model: | MWH 403 |
| Rated Voltage: | 230V~50Hz |
| Rated Input Power(Microwave): | 1450W |
| Rated Output Power(Microwave): | 900W |
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of fire, electric shock, injury to persons or exposure to excessive microwave oven energy when using your appliance, follow basic precautions, including the following:
- Warning: Liquids and other foods must not be heated in sealed containers since they are liable to explode.
a) Avoid to use narrow bottle.
b) Stir the liquid before cooking.
Put the spoon in the container when cooking.
c) Liquid shall be stranded for a period time and stirred after cooking.
- Warning: It is hazardous for anyone other than a competent person to carry out any service or repair operation that involves the removal of a cover which gives protection against exposure to microwave energy.
- Warning: Only allow children to use the oven without supervision when adequate instructions have been given so that the child is able to use the oven in a safe way and understand the hazards of improper use.
- Warning: When the appliance is operated in the combination mode, children should only use the oven under adult supervision due to the temperatures generated. (only for grill series)
- Only use utensils suitable for use in microwave ovens.
- The oven should be cleaned regularly and any food deposits should be removed.
- Read and follow the specific:"PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY".
- When heating food in plastic or paper containers, keep an eye on the oven due to the possibility of ignition.
- If smoke is observed, switch off or unplug the appliance and keep the door closed in order to stifle any flames.
- Do not overcook food.
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Do not use the oven cavity for storage purposes. Do not store items, such as bread, cookies, etc. inside the oven.
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Remove wire twist-ties and metal handles from paper or plastic containers/bags before placing them in the oven.
- Install or locate this oven only in accordance with the installation instructions provided.
- Eggs in the shell and whole hard-boiled eggs should not be heated in microwave ovens since they may explode, even after microwave heating has ended.
- Use this appliance only for its intended uses as described in manual. Do not use corrosive chemicals or vapors in this appliance. This oven is especially designed to heat. It is not designed for industrial or laboratory use.
- If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
- Do not store or use this appliance outdoors.
- Do not use this oven near water, in a wet basement or near a swimming pool.
- The temperature of accessible surfaces may be high when the appliance is operating. Keep cord away from heated surface, and do not cover any vents on the oven.
- Do not let cord hang over edge of table or counter.
- Failure to maintain the oven in a clean condition could lead to deterioration of the surface that could adversely affect the life of the appliance and possibly result in a hazardous situation.
- The contents of feeding bottles and baby food jars shall be stirred or shaken and the temperature checked before consumption, in order to avoid burns.
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Microwave heating of beverages can result in delayed eruptive boiling, therefore care must be taken when handling the container.
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The appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
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Children should be supervised to ensure that they do not play with the appliance.
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The microwave oven shall not be placed in a cabinet unless it has been tested in a cabinet.
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Appliances are not intended to be operated by means of an external timer or separate remote-control system.
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The door or the outer surface may get hot when the appliance is operating.
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The rear surface of appliance shall be placed against a wall.
To Reduce the Risk of Injury to Persons Grounding Installation
DANGER
Electric Shock Hazard
Touching some of the internal components can cause serious personal injury or death. Do not disassemble this appliance.
This appliance must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This appliance is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded.
WARNING
Electric Shock Hazard
Improper use of the grounding can result in electric shock. Do not plug into an outlet until appliance is properly installed and grounded.
Consult a qualified electrician or serviceman if the grounding instructions are not completely understood or if doubt exists as to whether the appliance is properly grounded.
CLEANING
Be sure to unplug the appliance from the power supply.
- Clean the inside of the oven after using with a slightly damp cloth.
- Clean the accessories in the usual way in soapy water.
- The door frame and seal and neighbouring parts must be cleaned carefully with a damp cloth when they are dirty.

CAUTION
Personal Injury Hazard It is hazardous for anyone other than a competent person to carry out any service or repair operation that involves the removal of a cover which gives protection against exposure to microwave energy.
UTENSILS
See the instructions on "Materials you can use in microwave oven or to be avoided in microwave oven." There may be certain non-metallic utensils that are not safe to use for microwaving. If in doubt, you can test the utensil in question following the procedure below.
Utensil Test:
- Fill a microwave-safe container with 1 cup of cold water (250ml) along with the utensil in question.
- Cook on maximum power for 1 minute.
- Carefully feel the utensil. If the empty utensil is warm, do not use it for microwave cooking.
- Do not exceed 1 minute cooking time.
Materials you can use in microwave oven
| Utensils | Remarks |
| Aluminum foil | Shielding only. Smooth pieces with smaller size than half of glass turntable can be used to cover thin parts of meat or poultry to prevent overcooking. Arcing can occur if foil is too close to oven walls. The foil should be at least 1 inch (2.5cm) away from |
| Browning dish | Follow manufacturer's instructions. The bottom of browning dish must be at least 3/16 inch (5mm) above the turntable. Incorrect usage may cause the turntable to break. |
| Dinnerware | Microwave-safe only. Follow manufacturer's instructions. Do not use cracked or chipped dishes. |
| Glass jars | Always remove lid. Use only to heat food until just warm. Most glass jars are not heat resistant and may break. |
| Glassware | Heat-resistant oven glassware only. Make sure there is no metallic trim. Do not use cracked or chipped dishes. |
| Oven cooking bags | Follow manufacturer's instructions. Do not close with metal tie. Make slits to allow steam to escape. |
| Paper plates and cups | Use for short-term cooking/warming only. Do not leave oven unattended while cooking. |
| Paper towels | Use to cover food for reheating and absorbing fat. Use with supervision for a short-term cooking only. |
| Parchment paper | Use as a cover to prevent splattering or a wrap for steaming. |
| Plastic | Microwave-safe only. Follow the manufacturer's instructions. Should be labeled "Microwave Safe". Some plastic containers soften, as the food inside gets hot. "Boiling bags" and tightly closed plastic bags should be slit, pierced or vented as directed by package. |
| Plastic wrap | Microwave-safe only. Use to cover food during cooking to retain moisture. Do not allow plastic wrap to touch food. |
| Thermometers | Microwave-safe only (meat and candy thermometers). |
| Wax paper | Use as a cover to prevent splattering and retain moisture. |
Materials to be avoided in microwave oven
| Utensils | Remarks |
| Aluminum tray | May cause arcing. Transfer food into microwave-safe dish. |
| Food carton with metal handle | May cause arcing. Transfer food into microwave-safe dish. |
| Metal or metal-trimmed utensils | Metal shields the food from microwave energy. Metal trim may cause arcing. |
| Metal twist ties | May cause arcing and could cause a fire in the oven. |
| Paper bags | May cause a fire in the oven. |
| Plastic foam | Plastic foam may melt or contaminate the liquid inside when exposed to high temperature. |
| Wood | Wood will dry out when used in the microwave oven and may split or crack. |
SETTING UP YOUR OVEN
Names of Oven Parts and Accessories
Remove the oven and all materials from the carton and oven cavity.
Your oven comes with the following accessories:
Glass tray 1 Turntable ring assembly 1 Instruction Manual 1

A) Control panel
B) Turntable shaft
C) Turntable ring assembly
D) Glass tray
E) Observation window
F) Door assembly
G) Safety interlock system
Turntable Installation

a. Never place the glass tray upside down. The glass tray should never be restricted.
b. Both glass tray and turntable ring assembly must always be used during cooking.
c. All food and containers of food are always placed on the glass tray for cooking.
d. If glass tray or turntable ring assembly cracks or breaks, contact your nearest authorized service center.
Countertop Installation
Remove all packing material and accessories. Examine the oven for any damage such as dents or broken door. Do not install if oven is damaged.
Cabinet: Remove any protective film found on the microwave oven cabinet surface. Do not remove the light brown Mica cover that is attached to the oven cavity to protect the magnetron.
Installation
- Select a level surface that provide enough open space for the intake and/or outlet vents.

A minimum clearance of 7.5cm is required between the oven and any adjacent walls. One side must be open.
(1) Leave a minimum clearance of 30cm above the oven.
(2) Do not remove the legs from the bottom of the oven.
(3) Blocking the intake and/or outlet openings can damage the oven.
(4) Place the oven as far away from radios and TV as possible. Operation of microwave oven may cause interference to your radio or TV reception.
- Plug your oven into a standard household outlet. Be sure the voltage and the frequency is the same as the voltage and the frequency on the rating label.
WARNING: Do not install oven over a range cooktop or other heat-producing appliance. If installed near or over a heat source, the oven could be damaged and the warranty would be void.
OPERATION
Control Panel and Features

flowchart
graph TD
A["MWH403"] --> B["火力 Power"]
B --> C["按重/按時解凍 Weight / Time Defrost"]
C --> D["停止 Stop"]
D --> E["時鐘/計時器/預約 Clock / Timer / Pre-Set"]
E --> F["極速啟動 Jet Start"]
F --> G["時間 Timer · 重量 Weight · 自動車調 Auto Menu"]
OPERATION INSTRUCTIONS
1. Clock Seng
When the microwave oven is rst turned on, the oven will display "0:00", the buzzer will ring once.
(1) Press"CLOCK/TIMER/PRE-SET" buon and the hour gures will ash.
(2) Turn the" dial to adjust the hour gures .The input me should be within 0 - 23.
(3) Press "CLOCK/TIMER/PRE-SET" buon again and the minute gures will ash.
(4) Turn the" dial to adjust the minute gures, the input me should be within 0 - 59.
(5) Press "CLOCK/TIMER/PRE-SET" to nish the clock seng procedure. The ":" will then ash.
Note:
(1) The clock will not count if it is not set when powered.
(2) During the process of clock seng, if you press "STOP", the oven will go back to the previous status.
2. Microwave Cooking
(1) Press the "POWERice, and and ash. "P100" will display
(2) Turn the" to select the microwave power. "P100", "P80", "P50", "P30", "P10" will display in order.
or
Press the "POWER" scroll through the power levels.
(3) Press "JETSTART"
(4) Turn the " ☐" dial to adjust the cooking me. (The me seng should be between 0:05- 95:00.)
(5) Press"JET START" to start the cooking process.
| LED display | Cooking power |
| P100 100% | |
| P80 80% | |
| P50 50% | |
| P30 30% | |
| P10 10% |
To stop the cooking process at anyme press the "STOP" buon .
3. Speedy Cooking
(1) Press the "JET START"buon to microwave cook at 100%, power level for 30 seconds. The microwave will start cooking immediately.
Each press on the same key will increase the cooking me by 30 seconds. The maximum cooking me is 95 minutes.
or
(2) Turn the" " dial le to adjust the desired cooking me, then press "JET START". The oven will start cooking for the selected length of me at 100% power.
Note: this funcon does not work for weightdefrost and auto menu cooking.
4. Defrosng by Weight
(1) Press "WEIGHT/TIME DEFROST" buon once, LED will display "dEF1".
(2) Turn the" dial to select the weight of the food in grams. The weight should be set between 100-2000g.
(3) Press "DEPSTART" art defrosng.
5. Defrosng by Time
(1) Press "WEIGHT/TIME DEFROST" buon twice, LED will display "dEF2".
(2) Turn the" " dial to select the defrosng me, the maximum me is 95 minutes.
(3) Press "JET START" buon to start defrosng.
The defrosng power is 30%, and cannot be changed.
6.Muł Stage Cooking
To set up a maximum of two cooking stages. For instance, can be set up defrost as the rst stage, and then set the cooking cycle as the following stage.
Example: if you want to defrost 500g of food, then cook it at 80% microwave power for 7 minutes. The steps are as follows:
(1) Press "WEIGHT/TIME DEFROSTAY" dEF1".
(2) Turn the "dial" to adjust the defrost weight to 500g;
(3) Press the "POWER"ce, LED will display "P100";
(4) Turn the" dial" to choose 80% microwave power II "P80" is displayed;
(5) Press "JETSTART"
(6) Turn the "dial" to adjust the cooking me to 7 minutes;
(7) Press the "JETUSTART" start the cooking process.
Note: Auto menu cannot be set as one of the mul-stage cooking funcons.
7.Pre-set funcon
Set the clock rst. (Consult the instrucons for seng the clock)
Input the cooking program. It's possible to input a maximum of two cooking stages. Do not use the defrost funcon in the pre-set funcon.
Example: if you want to cook with 80% microwave power for 7 minutes, to start at a given me.
(1) Press the "POWER"ce, LED will display "P100";
(2) Turn the " 🔥 " dial to choose 80% microwave power II "P80" is displayed;
(3) Press "JET START" buon to conrm;
(4) Turn the " 🔍 " dial to adjust the cooking me to 7 minutes; Aer the above steps, DO NOT press "JET START" buon. Follow the below steps to set up the pre-set funcon.
(5) Press the "CLOCK/TIMER/PRE-SET" buon, the hour gures will ash.
(6) Turn " 🔍" dial to adjust the hours gures, the input me should be within 0-23.
(7) Press "CLOCK/TIMER/PRE-SET" buon and the minute gures will flash.
(8) Turn the " 🔍 " dial to adjust the minutes gures, the input me should be within 0 - 59.
9) Press "JET START" buon to nish seng.
Note: Ensure the microwave oven is closed. When the pre-set me is reached, the buzzer will ring twice and start cooking automacally.
8. Kitchen Timer
(1) Press "CLOCK/TIMER/PRE-SET" twice, LED will display 00:00.
(2) Turn " 🔍 "to enter the correct timer.(The maximum cooking time is 95 minutes.)
(3) Press "JET START" to start timer.
(4) When the kitchen time is reached, timer indicator will go out. The buzzer will ring 5 times.
If the clock be set (24-hour system), LED will display the current time.
9. Auto Menu
The microwave can automatically calculate the cooking me based on the type of food and weight.
(1) Turn the " 🔥 " dial clockwise, "A-1" will display on the screen.
Connue to rotate the dial to access the other auto selecons, up to A- 10.
(2) Press the to "JETSTART" chosen auto menu.
(3) Turn the " dial to choose the food weight.
(4) Press bJETNSTART cooking.
Auto Cook Menu
| Display | Auto Menu | Weight | LED Display | Power |
| A-1 | Pizza | 200 g | 200 | 100% |
| 400 g | 400 | |||
| A-2 | Potato | 200 g | 200 | 100% |
| 400 g | 400 | |||
| 600 g | 600 | |||
| A-3 | Meat | 250 g | 250 | 100% |
| 350 g | 350 | |||
| 450 g | 450 | |||
| A-4 | Fish | 250 g | 250 | 80% |
| 350 g | 350 | |||
| 450 g | 450 | |||
| A-5 | Vegetable | 200 g | 200 | 100% |
| 300g | 300 | |||
| 400 g | 400 | |||
| A-6 | Beverage | 1(about 120ml) | 1 | 100% |
| 2(about 240ml) | 2 | |||
| 3(about 360ml) | 3 | |||
| A-7 | Pasta | 50g(with 450 ml cold water) | 50 | 100% |
| 100g(with 800ml cold water) | 100 | |||
| A-8 | Popcorn | 50 | 50 | 100% |
| 100 | 100 | |||
| A-9 | Chicken | 200 | 200 | 100% |
| 400 | 400 | |||
| 600 | 600 | |||
| 800 | 800 | |||
| A-10 | Reheat | 200 | 200 | 100% |
| 400 | 400 | |||
| 600 | 600 |
10. Checking Funcons
1) During the cooking cycle, press the b'POWER the current power will be displayed for 3 seconds.
2) In pre-set state, press the "CLOCK/TIMER/PRE-SET" buon and the pre-set me will be displayed for 3 seconds, and back to the clock display.
3) During the cooking cycle, press the "CLOCK/TIMER/PRE-SET" buon to check the current me. It will be displayed for 3 seconds.
11. Child lock
Lock on: The microwave oven will be locked on directly when powered on rstly with the door closed. LED will display " [::]:".
Lock o: Open the door or press "STOP" buon for 3 seconds, there will be a long "beep".
Lock on: In standby state, when nothing is operang in 1 minute, there will be a long "beep" as the lock acvates. LED will display "[::]:". The current will display if the clock has been set.
Lock o: Open the door or press "STOP" buon for 3 seconds, there will be a long "beep".
Lock on: In standby, when nothing is operang, press "STOP" buon for 3 seconds, there will be a long "beep" as the lock acvates.
LED display " [::]:".
Lock o: In locked state, press "STOP" buon for 3 seconds, there will be a long "beep".
The current me will connue to display.
When the child lock is on, no funcons can be acvated.
12Other operaon funcons
1) The buzzer will sound once when turning the knob at the beginning;
2) The "JET START" buon must be pressed again to connue cooking if the door is opened during a cooking cycle.
3) Once the cooking programme has been set, if the "JET START" buon is not pressed in 1 minute. The current me will display and the seng will be cancelled.
4) The buons will beep if they are pressed correctly, if not pressed correctly they will not beep.
5) The buzzer will sound ve mes to remind you when cooking is nished.
Trouble shooting
| Normal | |
| Microwave oven interfering TV reception | Radio and TV reception may be interfered when microwave oven operating. It is similar to the interference of small electrical appliances, like mixer, vacuum cleaner, and electric fan.It is normal. |
| Dim oven light | In low power microwave cooking, oven light may become dim. It is normal. |
| Steam accumulating on door, hot air out of vents | In cooking, steam may come out of food. Most will get out from vents. But some may accumulate on cool place like oven door. It is normal. |
| Oven started accidentally with no food in. | It is forbidden to run the unit without any food inside.It is very dangerous. |
| Trouble | Possible Cause | Remedy |
| Oven can not be started. | (1) Power cord not plugged in tightly. | Unplug. Then plug again after 10 seconds. |
| (2) Fuse blowing or circuit breaker works. | Replace fuse or reset circuit breaker (repaired by professional personnel of our company) | |
| (3) Trouble with outlet. | Test outlet with other electrical appliances. | |
| Oven does not heat. | (4) Door not closed well. | Close door well. |
| Glass turntable makes noise when microwave oven operates | (5) Dirty roller rest and oven bottom. | Refer to "Maintenance of Microwave" to clean dirty parts. |

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Symbol of a trash bin crossed with a diagonal line, no text or numbers presentAccording to Waste of Electrical and Electronic Equipment (WEEE) directive, WEEE should be separately collected and treated. If at any time in future you need to dispose of this product please do NOT dispose of this product with household waste. Please send this product to WEEE collecting points where available.