Mitsubishi Heavy air conditioners Fault Codes list

E1 -failure of the printed circuit board of the indoor unit, the remote control is connected incorrectly or is faulty.

E2 - duplication of addresses of internal blocks

E3 - invalid outdoor unit address

E5 - defective control board of the outdoor unit

E6 - evaporator temperature sensor closed / disconnected

E7 indoor unit sensor short-circuited

E8 - evaporator overload or sensor defective

E9 - error of the drainage pump or float sensor

E10 - more than 16 indoor units are connected to the control panel

E11 - more than one unit is connected to the control panel when the address is busy

E12 - address setting error

E14 - incorrect master-slave connection settings (master-slave)

E16 - defective indoor unit fan

E28 - defective control panel sensor

E30 - error connecting outdoor / indoor units

E31 - duplication, incorrect address settings

E32 - wrong phase sequence or wire break

E33 - open compressor winding

E34 - open phase L3 winding 52C

E35 - high condenser temperature or temperature sensor defective

E36 - Inadmissible exhaust air temperature deviation

E37 - defective condenser temperature sensor

E38 - defective outdoor temperature sensor

E39 - faulty thermal sensor discharge pipe

E40 - 63N1 high pressure switch tripped

E49 - system has stopped, low pressure or insufficient refrigerant

E52 - 52C failure

E53 - defective suction pipe thermistor

E54 - low pressure sensor disconnected

E55 - defective compressor thermistor

E56 - The power transistor thermal sensor is defective or broken

E57 -Not enough refrigerant

E59 - the compressor does not start

E60 - compressor positioning error

E63 - emergency shutdown of the indoor unit

Full list of fault codes for Mitsubishi Heavy Industries Air Conditioniers

This list of fault codes is intended for Mitsubishi Heavy Air Conditioners models: