Low pressure error occurs when suction pressure drops below 7.35 PSI for five minutes and repeats five times within two hours. The manual's first action is: “-Check if 3-way valve (gas side) is open. -Checked strainer. -Check ohm resistance value of EEV coil. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) -Check suction pressure sensor. -Check refrigerant amount.”
- Model
- Fujitsu General 410A
- Display shows
- Low pressure error (A5)
- Type
- Error code
- Source
- Manual p. 7
What A5 means
Low pressure error p. 7
Common causes
- Low Pressure Error – Protection stop by suction pressure ≤7.35 PSI continued for 5 minutes, repeats 5 times within 2 hours. p. 7
What to do
- -Check if 3-way valve (gas side) is open. -Checked strainer. -Check ohm resistance value of EEV coil. (Ref. Service Tip #001-Discharge Temperature Thermistor Error) -Check suction pressure sensor. -Check refrigerant amount. p. 7
If A5 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 A5; 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.