Husqvarna Automower Collision Sensor Problem: Body Checks
Collision Sensor Problem means the mower is not receiving the expected response from its body or collision mechanism.
Reviewed by the RobotMower.help editorial team. Independent guidance based on the manufacturer source linked below.
Quick answer
Turn it off, remove anything pressing against the body, clean accessible gaps, and check manual-approved body movement.
Illustrative troubleshooting image; not a manufacturer product photo.
Fix it in this order
- Power off the mower.
- Remove external pressure.
- Brush accessible gaps.
- Check body alignment.
- Test permitted movement.
- Move to open lawn.
- Test one safe obstacle.
What usually causes this?
Packed grass, twigs, mud, a wedged object, misaligned body, frozen movement, sensor damage, or wiring faults can trigger it.
How to verify the fix
The body should move normally and the mower should turn away from a safe obstacle without another warning.
Do not skip this check: repeat the affected action under supervision before restoring schedules.
Frequently asked questions
Should I reset it first?
No. Record the exact message and inspect the likely physical or connection cause first.
Should I replace a part immediately?
Only after official checks isolate that component.
When should I stop?
Stop for damaged wiring, unusual heat, swelling, burning odor, water inside electrical parts, or repeated hardware faults.
When to contact support
Contact Husqvarna support if the message returns after the official checks. Send the model, serial number, firmware version, photos, and a short video.
Source and scope
Primary reference: Husqvarna official support.
RobotMower.help is independent and is not affiliated with or endorsed by Husqvarna. Product behavior can vary by model and firmware.