37MGRA 37MGRA PC 0F (PFC module protection diagnosis and solution) – Carrier Enterprise Technical Services & Support

Diagnostic codes covered

PC 0F

Description: Outdoor PCB detects PFC signal is low voltage or DC voltage is lower than 340V for 6s when quick check. Recommended parts to prepare: Connection wires Outdoor PCB, Inductance, PFC circuit or IPM module board Troubleshooting and repair:

Troubleshooting workflow

PC 0F (PFC module protection diagnosis and solution) workflow — PC0F (PFC module protection diagnosis and solution) workflow

Related diagnostic checks

37MGRA IPM Continuity Check

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