Mitsubishi Heavy Industries · Packaged Air Conditioners
When the air conditioner encounters an issue, it stops operating. The red check indicator light on the wired remote control will flash, and an error code will be shown in the ON timer display area, along with 'STANDBY' and the 'ROOM TEMPERATURE' display. If multiple units are connected, the lowest numbered unit's error displays first.
Click steps to track your progress.
Identify the error code displayed on the remote control. The error code will appear in the ON timer display area.
If multiple indoor units are connected, press the AIR CON No. button to enter display mode, then use the up/down buttons to cycle through units and their error codes.
Press the ON/OFF button once to turn off the error display and return to stop mode. Press it again to redisplay errors if needed.
Note the specific error code and contact your dealer or service technician, providing them with the code for diagnosis.
If the problem persists after attempting to clear the error, refrain from further operation and seek professional assistance.