Discharge temperature error occurs when discharge temperature exceeds 23°F (110°C) twice in 24 hours. The manual's first action is: “-Check if 3-way valve is open. -Check EEV, strainer. (Ref. Service Tip #001-HFI Discharge Temperature Error and/or "Discharge Temperature Error" under "Troubleshooting by Error Code" Type in Zendesk Help Center) -Check outdoor unit fan, heat exchanger. -Check discharge thermistor. (Ref. Thermistor Resistance Chart)”
- Model
- Fujitsu General 410A
- Display shows
- Discharge temperature error (A1)
- Type
- Error code
- Source
- Manual p. 7
What A1 means
Discharge temperature error p. 7
Common causes
- Discharge Temperature Error - Protection stop by discharge temperature ≥23°F (110°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 if 3-way valve is open. -Check EEV, strainer. (Ref. Service Tip #001-HFI Discharge Temperature Error and/or "Discharge Temperature Error" under "Troubleshooting by Error Code" Type in Zendesk Help Center) -Check outdoor unit fan, heat exchanger. -Check discharge thermistor. (Ref. Thermistor Resistance Chart) p. 7
- -Check EEV, strainer. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) p. 7
If A1 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 A1; 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.