Error code
Mitsubishi Electric PCA code P9
No approved translation for this record yet; showing the original text.
Meaning
Condenser-Evaporator (TH5) The unit is in 3-minute resume protection mode if short/open of thermistor is detected. Abnormal if the unit does not get back to normal within 3 minutes. (The unit returns to normal operation, if it has been reset normally.) Constantly detected during cooling, drying, and heating operation (except defrosting) Short: 90˚C or more Open: −40˚C or less Remote controller transmission error(E0)/signal receiving error(E4) Abnormal if main or sub remote controller cannot rece
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
characteristics Contact failure of connector (CN44) on the indoor controller board (Insert failure) Breaking of wire or contact failure of thermistor wiring Temperature of thermistor is 90˚C or more or −40˚C or less caused by defective refrigerant circuit. Defective indoor controller board Contact failure at transmission wire of remote controller All remote controllers are set as “sub” remote controller. In this case, E0 is displayed on remote controller, and E4 is displayed at LED (LED1, LED2) on the outdoor controller circuit board. Miswiring of remote controller
Solution
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.
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