Automower 220 Blocked wheel motor, left and right

[olemikal]

Hello!

I have a 220AC that get a fault message "Left wheel motor blocked" or "Right wheel motor blocked" from time to time when cutting.
i have changed the 6pcs mosfets for wheel motors.

i have measured the resistors before mosfets, cannot find any bad ones.

Any thaugts on what could be causing this?

[Razmoket]

Possibly a lack of grease in motor mechanism (or an excess of it) which makes the motor reductor hard to spin.

You need to test according to the manual before drawing conclusions