37MGRA PC 02 / LC 06 (Compressor Top (or IPM) Temp. Protection Diagnosis and Solution)

37MGRA Diagnostic Codes

Diagnostic codes covered

PC 02(PC02), LC 06(LC06)

  • PC 02 – Compressor Top or IPM Module Protection

Description: For some models with overload protection, If the sampling voltage is not 5V, the LED will display the failure. If the temperature of IPM module is higher than a certain value, the LED displays the failure code. Recommended parts to prepare: Connection wires, Outdoor PCB, IPM module board, High pressure protector, System blockages Troubleshooting and repair:

Troubleshooting workflow

PC 02 / LC 06 (Compressor Top (or IPM) Temp. Protection Diagnosis and Solution) workflow
PC 02 / LC 06 (Compressor Top (or IPM) Temp. Protection Diagnosis and Solution) workflow

Related diagnostic checks

Workflow source: original 37MGRA-02SM service-manual PDF. Error-code names cross-checked against 37MGRA-04SI.

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