Q: The robot does not automatically detect or find the charging station

If your KRESS Mission 1000 KR120E does not detect or find the charging station, here are the solutions to try: 1. Check the electrical connection and indicators Make sure the charging base is properly connected to a 100-240 V electrical outlet (50/60 Hz). The green light on the charging station should be on. If not, check the power cord and the RCD protection (30 mA circuit breaker). 2. Clean the pins and contact strips This is the most common cause. The robot cannot recognize the station if the contacts are dirty: Clean the contact pins located on the charging base. Clean the charging strip (also called "charging bands") located on the robot itself. Use a dry cloth to remove dirt and grass debris. Check for any debris buildup around the pins and charging strips. 3. Manually place the robot in the station To check that the station is working and the contacts are good: Manually place the robot (turned off) in the charging base. The green light should blink on the base, indicating that charging has started. Let it charge for about 160 minutes for a full charge. 4. Check the position and access to the station The station should be placed on a flat and stable surface. Make sure there is enough free space around the station for the robot to dock without obstacles. If after cleaning the contacts and testing a manual charge the robot still does not recognize the station, there may be a hardware issue with the robot's sensors or the charging base - contact KRESS support in this case.

Q: The lawn mower robot won't start - causes and solutions

If your KRESS Mission 1000 KR120E won't start, here are the checks to perform in order: 1. Check the power supply The first step is to ensure that the charging base is receiving power. Make sure that the power cord is properly connected to the charging station. Check that the green light is on at the base — this is a sign that the device is receiving power. 2. Clean the charging contacts The most common cause of failure to start is dirt on the contact pins. Gently clean with a dry cloth: The contact pins on the charging base The charging strips on the robot itself A poor contact can prevent the battery from charging and thus the robot from starting. 3. Check the boundary wire If the screen displays “Out of working area” or if the robot refuses to start, the ends of the boundary wire may be reversed at the charging station. Simply swap the positions of the two wires to correct the issue. 4. 20V Max lithium-ion battery Your robot is equipped with a lithium-ion battery. If the robot has not been used for a long time, try letting it charge longer (at least 2 to 3 hours). Lithium batteries may require preconditioning before the first start. 5. Use the official Kress charger For your Mission 1000 KR120E, use only the official Kress chargers (KA0200/KA0201). An incorrect charger or an incompatible adapter may prevent the robot from starting properly. If the robot still refuses to start after these checks, a diagnosis via the mobile app (if available) or contacting Kress support may be necessary.

Q: How do I adjust the cutting height of the KRESS Mission KR172E.A mower?

The cutting height of your KRESS Mission KR172E.A is adjusted using 7 adjustment positions located on the mower's wheels. This practical system allows you to easily adjust the cutting height without any tools required. Adjustment range: the cutting height is adjustable from 30 to 60 millimeters , with 7 distinct levels. Each position corresponds to a specific cutting height, allowing you to adapt the mower according to the condition of your lawn. How to proceed: Turn off the machine before making any adjustments. Locate the height adjustment levers located on each of the wheels. Manipulate each lever by hand to position it at the desired height. For optimal operation and correct balance of the mower, ensure that all wheels are set to the same level. Practical tips: Adjust the cutting height according to your preferences and the condition of your lawn. A higher cutting height (60 mm) is recommended to protect your grass during dry periods, while a lower height (30 mm) is suitable for a well-established and maintained lawn. Check the adjustment before each use to ensure an even cut and optimal performance of your KRESS mower.

Q: How to remove the rear wheel of the KRESS Mission KR173E lawn mower?

Before any intervention: completely stop the mower and remove the battery. Access to the rear wheels: Gently turn the device over on a stable surface to access the rear drive wheel. Locate the wheel cover (mudguard) that protects the wheel - it is held by screws or clips. Use the wrench provided as an accessory with your mower, or a screwdriver, to remove the wheel cover. Removing the wheel: Locate the fixing axle at the center of the wheel - it is usually a screw or a clip system. Unscrew the axle (or remove the clip) and then gently pull the wheel outward to release it. Remove any stone or obstacle stuck in the mechanism. Reattach the wheel in reverse order, ensuring that the axle is tight (or the clip is properly engaged). Note: the manual for this model does not detail this procedure with a diagram. If the wheel appears damaged or if you are unsure, contact KRESS support directly via kress.com or an authorized dealer.

Question 1

The robot does not automatically detect or find the charging station

Accepted Answer

If your KRESS Mission 1000 KR120E does not detect or find the charging station, here are the solutions to try:

1. Check the electrical connection and indicators

Make sure the charging base is properly connected to a 100-240 V electrical outlet (50/60 Hz).
The green light on the charging station should be on. If not, check the power cord and the RCD protection (30 mA circuit breaker).

2. Clean the pins and contact strips

This is the most common cause. The robot cannot recognize the station if the contacts are dirty:

Clean the contact pins located on the charging base.
Clean the charging strip (also called "charging bands") located on the robot itself.
Use a dry cloth to remove dirt and grass debris.
Check for any debris buildup around the pins and charging strips.

3. Manually place the robot in the station

To check that the station is working and the contacts are good:

Manually place the robot (turned off) in the charging base.
The green light should blink on the base, indicating that charging has started.
Let it charge for about 160 minutes for a full charge.

4. Check the position and access to the station

The station should be placed on a flat and stable surface.
Make sure there is enough free space around the station for the robot to dock without obstacles.

If after cleaning the contacts and testing a manual charge the robot still does not recognize the station, there may be a hardware issue with the robot's sensors or the charging base - contact KRESS support in this case.

Question 2

The lawn mower robot won't start - causes and solutions

Accepted Answer

If your KRESS Mission 1000 KR120E won't start, here are the checks to perform in order:

1. Check the power supply

The first step is to ensure that the charging base is receiving power. Make sure that the power cord is properly connected to the charging station. Check that the green light is on at the base — this is a sign that the device is receiving power.

2. Clean the charging contacts

The most common cause of failure to start is dirt on the contact pins. Gently clean with a dry cloth:

The contact pins on the charging base
The charging strips on the robot itself

A poor contact can prevent the battery from charging and thus the robot from starting.

3. Check the boundary wire

If the screen displays “Out of working area” or if the robot refuses to start, the ends of the boundary wire may be reversed at the charging station. Simply swap the positions of the two wires to correct the issue.

4. 20V Max lithium-ion battery

Your robot is equipped with a lithium-ion battery. If the robot has not been used for a long time, try letting it charge longer (at least 2 to 3 hours). Lithium batteries may require preconditioning before the first start.

5. Use the official Kress charger

For your Mission 1000 KR120E, use only the official Kress chargers (KA0200/KA0201). An incorrect charger or an incompatible adapter may prevent the robot from starting properly.

If the robot still refuses to start after these checks, a diagnosis via the mobile app (if available) or contacting Kress support may be necessary.

Question 3

The mower suddenly stops even though the battery is not empty, why?

Accepted Answer

When the mower suddenly stops despite a non-empty battery, it generally indicates a battery overheating. The motor has an automatic protection system that cuts off the power to prevent any damage.

Procedures to follow:

Cool the battery - Remove the battery from the mower and let it cool down to 42°C or less before reusing it (minimum 30 minutes).
Check the blades - Blocked or dirty blades create excessive resistance and cause the motor to overheat:
- Remove the safety key
- Tip the mower on its side (carburetor side up)
- Check that the blades (cutting width 46 cm) turn freely
- Clean any grass or debris residue
Sharpen the blades - Dull blades increase the load on the motor. Sharpen them twice per season for better performance.
Check safety elements - Ensure that the safety key is fully inserted and that the safety lock button remains pressed during operation.

If the stop persists after cooling the battery and cleaning the blades, contact customer service - it may be a defect in the electric motor (1800 W) or the protection system.

Question 4

How to set up and configure the KRESS Mission 1500 KR122E robot mower?

Accepted Answer

The KRESS Mission 1500 KR122E robot mower requires initial setup before use. Here are the essential steps:

Initial Preparation

Fully charge the 20V Lithium-ion battery (KA0102/KA3024) before first use
Clean the housing with a damp cloth - never use a water jet or pressure washer

Adjusting the Cutting Height

The mower has 4 positions to adjust the cutting height between 30 and 60 mm. Select the position suitable for the condition of your lawn (lower for a short cut, higher for more protection).

Installing the Perimeter Wire

This is the key element for robot mowers:

Install the perimeter wire with rounded angles rather than right angles to avoid navigation issues
Maintain a minimum spacing of 1 meter between the wire and competing signal sources
Keep the wire away from slopes greater than 17%
The mower can handle areas up to 1500 m²

Pre-Maintenance

Replace all blades together every 2 months with new screws to maintain balance and safety
Charge and store the battery in a cool, dry place (20°C ± 5°C) before prolonged use

Refer to the complete 136-page manual (available in multiple languages) for technical details and advanced troubleshooting procedures.

Question 5

Do I need to redo the mapping if I move the base station?

Accepted Answer

Moving the base station without remapping

No, it is generally not necessary to redo the entire mapping if you are only moving the base station (charging station). Here’s why:

RTK GPS - The satellite positioning system (RTK) operates independently of the station's position. It maps the area based on your GPS coordinates, not on the physical location of the charging station.
Magnetic strip - This is the only element that requires special attention: it must always be oriented with the green strip away from the charging station and extend at least 2.5 meters into the mowing area so that the mower can position itself correctly when returning.
Working area (virtual boundary) - Your digitally defined mowing area remains unchanged after moving the station.

In summary: move the station, readjust the magnetic strip only if necessary (position and orientation), and you can continue to use your existing mapping.

Question 6

How do I adjust the cutting height of the KRESS Mission KR172E.A mower?

Accepted Answer

The cutting height of your KRESS Mission KR172E.A is adjusted using 7 adjustment positions located on the mower's wheels. This practical system allows you to easily adjust the cutting height without any tools required.

Adjustment range: the cutting height is adjustable from 30 to 60 millimeters, with 7 distinct levels. Each position corresponds to a specific cutting height, allowing you to adapt the mower according to the condition of your lawn.

How to proceed: Turn off the machine before making any adjustments. Locate the height adjustment levers located on each of the wheels. Manipulate each lever by hand to position it at the desired height. For optimal operation and correct balance of the mower, ensure that all wheels are set to the same level.

Practical tips: Adjust the cutting height according to your preferences and the condition of your lawn. A higher cutting height (60 mm) is recommended to protect your grass during dry periods, while a lower height (30 mm) is suitable for a well-established and maintained lawn. Check the adjustment before each use to ensure an even cut and optimal performance of your KRESS mower.

Question 7

How do I remove the wheel cover from the KRESS Mission KR173E mower?

Accepted Answer

The PDF manual for the KRESS Mission KR173E does not detail the exact procedure for removing the wheel cover (fender). Here is what we know about the product:

The manual confirms that the fender and a key are provided as accessories. This key (likely a hex or flat key) is intended for maintenance operations.

General method for this type of mower:

Completely stop the mower and remove the battery for safety reasons.
The wheel cover (fender) is generally held by screws or clips. Check the visible attachment points around the cover.
Use the provided key or a flat screwdriver depending on the type of attachment (screw or notch).
Once removed, you will have access to the axle and wheel mechanism.

For the exact procedure with detailed diagrams, we recommend consulting KRESS support directly via the kress.com website or asking a technical advisor.

Question 8

How to remove the rear wheel of the KRESS Mission KR173E lawn mower?

Accepted Answer

Before any intervention: completely stop the mower and remove the battery.

Access to the rear wheels:

Gently turn the device over on a stable surface to access the rear drive wheel.
Locate the wheel cover (mudguard) that protects the wheel - it is held by screws or clips.
Use the wrench provided as an accessory with your mower, or a screwdriver, to remove the wheel cover.

Removing the wheel:

Locate the fixing axle at the center of the wheel - it is usually a screw or a clip system.
Unscrew the axle (or remove the clip) and then gently pull the wheel outward to release it.
Remove any stone or obstacle stuck in the mechanism.
Reattach the wheel in reverse order, ensuring that the axle is tight (or the clip is properly engaged).

Note: the manual for this model does not detail this procedure with a diagram. If the wheel appears damaged or if you are unsure, contact KRESS support directly via kress.com or an authorized dealer.

Question 9

How to resolve the issue of the stuck on/off button that prevents the complete entry of the PIN code on the KRESS Mission KR236E mower?

Accepted Answer

On the KRESS Mission KR236E mower, the on/off button is an essential part of the safety system. This switch must be activated before the mower can start with the PIN code. If this button is stuck or not functioning properly, starting the mower becomes impossible and you will not be able to access the numeric keypad to enter your four-digit PIN code.

According to the manual for your Mission KR236E, the device can only start when it is powered on (on/off button activated) AND the correct PIN code has been entered. The sequence is as follows: you first press the on/off button to power the device on, then you enter your four-digit PIN code that you set during the first startup. A stuck on/off button interrupts this sequence at the very first step.

The KRESS manual clearly states: "Never use the Mission KR236E when the on/off button is damaged". This means that continuing to use the device with this defect poses a safety risk and could damage the internal electronics.

Here’s what you need to do:

Do not try to force the on/off button - this could worsen the problem and damage the device's electronic system
Stop using it immediately - press the STOP button to turn off the mower and do not use it again until the issue is resolved
Contact your KRESS dealer or an authorized service center - this is a hardware defect that requires professional intervention. The on/off button will need to be repaired or replaced
Check your warranty documentation - the Mission KR236E comes with a 2-year warranty that may cover this type of hardware defect

Under no circumstances should you bypass this safety system or attempt to start the device using other methods. The PIN code and the on/off button are critical safety elements that prevent accidental starts and unauthorized use of your mower.

Question 10

What does the error "Disengagement error from the charging base" mean on the KRESS Mission KR173E robotic mower and how can it be resolved?

Accepted Answer

When your KRESS Mission KR173E robotic mower displays the error "Disengagement error from the charging base" and stops, it indicates a problem related to the disconnection mechanism between the robot and its charging station.

Possible causes:

The robot is poorly positioned on the charging base, preventing good contact or proper disengagement.
An obstacle or dirt is blocking the unlocking mechanism between the robot and the base.
A malfunction of the detection system or sensors of the charging base.
An electrical or software issue preventing the robot from leaving the station correctly.

Solutions to try:

Check that the robot is properly aligned and positioned on the charging base.
Carefully clean the contact area between the robot and the base, removing any dirt, grass, or debris.
Ensure that no obstacle is obstructing the unlocking mechanism.
Restart the robot by turning it off and then back on to reset the sensors.
If the problem persists, check the electrical connections of the base and the robot.

If none of these steps resolve the issue, it may be necessary to contact KRESS customer service for a more in-depth diagnosis or repair.

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