Mitsubishi Electric · MSZ-AY Air Conditioners
In failure mode recall function, if the upper OPERATION INDICATOR lamp blinks eleven times with a 2.5-second OFF interval, it indicates that the rotational frequency feedback signal from the indoor fan motor was not emitted for 12 seconds after the motor started.
Click steps to track your progress.
Release the failure mode recall function by cycling power to the unit or pressing the remote controller's RESET button.
Check for any obstructions that might be preventing the indoor fan from rotating freely.
If the issue persists, contact a service technician to check the indoor fan motor.