Panasonic Aquarea T-CAP R32 fault F22
IPM overheating
Heat pumpWhat it means
During operation of cooling and heating, when temperature 95°C is detected by the outdoor IPM temperature sensor.
Likely causes
- Improper heat exchange
- IPM (Power transistor) fault
- Faulty outdoor unit fan motor
- Faulty outdoor unit PCB (main)
- No zone sensor connected to Zone 1 causes No zone sensor error
Where to start
- Check heat exchange condition
- Inspect IPM/power transistor
- Check the outdoor unit installation condition.
The full answer, free
- 21 more checks in order
- The readings and component tests from the manual
- How to put it right, step by step
- The manual page for this fault (page 198), right under the answer
Safety: Isolate the outdoor unit and any backup heater, and give the inverter capacitors time to discharge before you open the electrics. Anything on the refrigerant circuit needs F-gas certification.
From the Panasonic manual for the Aquarea T-CAP R32. Check the model on the data plate before you order parts.
Other Panasonic Aquarea T-CAP R32 fault codes
- F15Outdoor fan motor (DC motor) mechanism locked
- F16Input over current detection
- F20Compressor 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