How to resolve a defective left or right collision sensor on a Husqvarna Automower Lawn Mower?
- Ssherri13Aug 31, 2025
To resolve a defective left or right collision sensor on your Husqvarna Lawn Mower: * The mower may be jammed. Remove any obstructing objects. * Check that the rear screws on the body are tightened correctly. Lift the body from the rear and tighten if necessary. * Inspect the magnet in the collision sensor pillar for looseness, twisting, or absence. Use Tools - Test - Sensors (shortcut 5-2-5) to check if magnets indicate a collision without contact. * Examine the collision sensor card and cabling for defects. Ensure the magnet is seated correctly and the mower indicates a collision without contact. * If the upper section cable harness is damaged, replace it.