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P8: IPM/PFC Module High Temperature Protection.


  1. Verify Blocked Air Flow:

    • Check for any obstructions or blockages in the air intake and exhaust vents.

    • Ensure proper ventilation around the unit to prevent overheating.

    • Clean or replace air filters if necessary.

  2. Check if System Overcharged:

    • Verify refrigerant levels and ensure they are within the specified range.

    • Consult system documentation for appropriate refrigerant charge specifications.

    • If overcharged, consider adjusting refrigerant levels following manufacturer guidelines.

  3. Check the Outdoor Board:

    • Inspect the outdoor board for signs of malfunction related to the IPM/PFC module high-temperature protection.

    • Confirm proper wiring and connections on the outdoor board.

    • Look for any visible damage or anomalies on the outdoor board.

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