f11 shows on the machine

petar, F/11 error is a Serial Communication Error

Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

Potential Causes

• Check Wire Harness connections to the MCU, the motor, and Central Control

Unit (CCU)

• Check the Drive system for any worn or failed components

• Check MCU

• Check CCU

• Check Motor

• Check Wire Harness

Your tub should actually have 4 shock absorbers that hold it in places. It is easily possible that those, or at least one has either failed or is dislodged. Get the service manual from here if you need it. Hope this helps, good luck.