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Panasonic Aquarea T-CAP R32 fault codes

44 codes from the Panasonic manual for the Aquarea T-CAP R32 heat pump. Pick one for what it means, the likely causes and where to start.

CodeWhat it means
F12Outdoor high pressure switch activate
F15Outdoor fan motor (DC motor) mechanism locked
F16Input over current detection
F20Compressor overheating
F22IPM overheating
F23Output over current detection
F24Refrigeration cycle abnormality
F25Four way valve abnormality
F30Indoor water outlet temperature sensor 2 abnormality
F36Outdoor air temperature sensor abnormality
F37Indoor water inlet temperature sensor abnormality
F40Outdoor discharge pipe temperature sensor abnormality
F41Power factor correction (PFC) abnormality
F42Outdoor pipe temperature sensor abnormality
F43Outdoor defrost temperature sensor abnormality
F45Indoor water outlet temperature sensor abnormality
F46Outdoor current transformer open circuit
H12Connection capability rank abnormality
H15Compressor tank temperature sensor abnormality
H20Water pump abnormality
H23Indoor refrigerant liquid temperature sensor abnormality
H27Service valve error
H28Abnormal solar sensor
H31Abnormal swimming pool sensor
H36Abnormal buffer tank sensor
H38Brand code not matching
H42Compressor low pressure protection
H43Abnormal zone 1 sensor
H44Abnormal zone 2 sensor
H62Water flow switch abnormality
H63Abnormal low pressure sensor
H64Outdoor high pressure abnormality
H65Deice circulation error
H67Abnormal external thermistor 1
H68Abnormal external thermistor 2
H70Indoor backup heater OLP abnormality
H72Tank temperature sensor abnormality
H74PCB communication error
H75Low water flow during defrost process
H76Indoor-control panel communication abnormality
H90Indoor/outdoor abnormal communication
H91Tank booster heater OLP abnormality
H95Unspecified voltage between indoor and outdoor
H99Indoor freeze-up protection