Panasonic Aquarea T-CAP R32 fault F37
Indoor water inlet temperature sensor abnormality
Heat pumpWhat it means
During startup and operation of cooling and heating, the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error.
Likely causes
- Sensor wiring fault
- Faulty connector connection
- Faulty indoor unit PCB (main)
- Indoor communication error
Where to start
- Measure resistance of indoor water inlet temperature sensor with connector unplugged
- Confirm Force heater request ON by user OR auto turn ON by remote controller during error
- Check latest mode selection sent by remote controller (heat/cool/tank)
The full answer, free
- 5 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 205), 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
- 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
- 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