Error code

Mitsubishi Electric PUHY code 7121

No approved translation for this record yet; showing the original text.

Meaning

Power-off detection: If the power-off of the indoor units and shut off valve kit or power supply interface for alarm kits are detected

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

(1) The indoor units and shut off valve kit or power supply interface for alarm kits are off

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.

Get help from a technician over a video call.