M thermal Split
76 202004
Midea M thermal Split
4.17 P3 Troubleshooting
Digital display output 4.17.1
Description 4.17.2
Compressor current protection.
When the compressor current rises above the protection value (4/6kW models 18A, 8/10kW model 19A, 12/14/16kW
single phase model 30A, 12/14/16kW three phase model 14A,), the system displays P3 protection and M thermal Split
stops running. When the current returns to the normal range, P3 is removed and normal operation resumes.
Error code is displayed on refrigerant system main PCB and user interface.
Possible causes 4.17.3
Poor condenser heat exchange.
High pressure side blockage.
Inverter module damaged.
Compressor damaged.
Outdoor unit main PCB damaged.
Midea CAC
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