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F3 error code - Open circuit or short circuit of temperature sensor
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F4 error code - EEPROM parameter error
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F5 error code - Fan speed has been out of control
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P0 error code - IPM malfunction or IGBT over-strong current protection
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P1 error code - Over voltage or too low voltage protection
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P2 error code - High temperature protection of IPM module
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P3 Error code - Outdoor Ambient Temperature Too Low
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P4 error code - Inverter compressor drive error
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P5 Error Code - Conflict Mode
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P6 error code - Low pressure protection