Mitsubishi Heavy Industries Error Codes
If faults are occurring on your Mitsubishi Heavy air conditioning system, it is very important to discover it quickly. Error codes are a great way to find out the initial problem. Error codes are usually displayed on your remote.
If you can’t find what you are looking for, give us a call on 0203 488 1889 and we will be happy to help.
Mitsubishi Heavy Industries error codes:
E1 | Remote control communication error |
E2 | Duplicate indoor unit address |
E3 | Outdoor unit signal line error |
E5 | Communication error during operation |
E6 | Internal heat exchanger temperature thermistor abnormality (Thi-R) |
E7 | Internal return air temperature thermistor abnormality (Thi-A) |
E9 | Unloading problem |
E10 | Excessive number of indoor units with remote control |
E12 | Address setting error with mixed setting method |
E16 | Internal fan motor abnormality (FDT series) |
E16 | Internal fan motor abnormality (FDK series) |
E19 | Indoor unit operation control unload motor control mode abnormality |
E28 | Remote control temperature thermistor abnormality (ThC) |
E30 | Incompatible connection of indoor and outdoor unit |
E31 | Replicated outdoor unit address no. |
E32 | Open L3 phase in the primary side power supply |
E36 | Drain pipe temperature error (Tho-D1, D2) |
E36 | Liquid overflow abnormality |
E37 | Abnormalities of external heat exchanger temperature thermistor (Tho-R) and sub-cooling coil temperature thermistor (Tho-SC, -H) |
E38 | Outdoor temperature thermistor abnormality (Tho-A) |
E39 | Drain pipe temperature thermistor abnormality (Tho-D1, D2) |
E40 | High pressure abnormality (63H1-1, 2 active) |
E41 (E51) | Power transistor overheating |
E42 | Power failure (CM1, 2) |
E43 | Over-connected indoor units, over-total capacity connection |
E45 | Communication error between inverter PCB and external control PCB |
E46 | Mixed address setting methods available on the same network |
E48 | External DC fan motor abnormality |
E49 | Low pressure abnormality |
E53/E55 | Suction pipe temperature thermistor abnormality (Tho-S), Under-dome temperature thermistor abnormality (Tho-C1, C2) |
E54 | High pressure sensor (TSH) Low pressure sensor (PSL) abnormality |
E56 | Power transistor temperature thermistor abnormality (Tho-P1, Tho-P2) |
E58 | Abnormal compressor with loss of synchronization |
E59 | Compressor start failure (CM1, 2) |
E60 | Rotor position detection failure (CM1, 2) |
E61 | Communication error between main unit and backup units System error |
E63 | Emergency stop |
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