Mitsubishi Electric · PUMY Air Conditioners
The connected indoor and outdoor units of the Mitsubishi Electric PUMY Air Conditioner system are not compatible with each other, leading to a system error and preventing operation.
Click steps to track your progress.
Note the error code displayed on the remote controller or outdoor unit.
Power off the Mitsubishi Electric PUMY Air Conditioner system at the main electrical breaker.
Wait for at least 30 seconds, then restore power to the system.
If the error persists, contact a qualified service technician to verify the compatibility of your installed system components against manufacturer specifications.