F6
Daikin
Low Refrigerant Flow / Underload
Daikin unit shows F6; capacity reduced or unit stops
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Refrigerant shortage, Partially blocked expansion valve, Blocked filter drier, Incorrect EEV control
How to Fix / Troubleshooting
Safety first: Refrigerant-side diagnostics must be done by licensed personnel.
Technician overview:
- Check operating pressures and superheat/subcooling.
- Inspect and test the EEV; replace if stuck or not responding.
- Leak-check and recharge refrigerant to Daikin specifications.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Electronic Expansion Valve
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements