Compressor temperature error occurs when compressor temperature exceeds 236°F (107.8°C) twice in 24 hours. The manual's first action is: “-Check EEV, strainer. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) -Check outdoor unit fan, heat exchanger. (Ref. Service Tip #009-Fan Motor Check) -Check compressor thermistor, loose connection. (Ref. Thermistor Resistance Chart)”
- Model
- Fujitsu General 410A
- Display shows
- Compressor temperature error (A3)
- Type
- Error code
- Source
- Manual p. 7
What A3 means
Compressor temperature error p. 7
Common causes
- Compressor Temperature Thermistor Error – Protection stop by compressor temperature ≥236°F (107.8°C) during compressor operation generated 2 times within 24 hours. p. 7
- -Check if 3-way valve is open. p. 7
What to do
- -Check EEV, strainer. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) -Check outdoor unit fan, heat exchanger. (Ref. Service Tip #009-Fan Motor Check) -Check compressor thermistor, loose connection. (Ref. Thermistor Resistance Chart) p. 7
- -Check EEV, strainer. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) p. 7
If A3 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Fujitsu General service.
This page summarises what the manufacturer’s manual says about A3; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Fujitsu General. Found a mistake? Report an error.