If you have a mini split that gives an F0 error code it is a Compressor Overload Current Protection error.
Several things can cause an F0 error code on a mini split and of course the error can be manufacture specific.
The most common fix is to turn the unit off at the breaker for 2-5 minutes resetting both indoor and outdoor condensers.
Steps To Fix a Mini Split F0 Error Code
- Power Off the Unit
- Turn Power Off at the Breaker for 2-5 minutes Resetting the Unit
- Turn the power On and see if the error goes away
Resetting the whole system is the first step and often solves the problem.
If the error comes back below is more advanced things that can cause the error.
Causes of F0 Error Code
- Improper Wiring
- Loose Wiring Connections
- Power Supply
- System Blockage
- Fan Malfunction
- Faulty Main PCB
- Compressor Malfunction
Components to Test with F0 Error Code
- Check Power Supply
- Check the Outside Fan and Condenser
- Check the Wiring between the Indoor and Outdoor Unit
- Check the Amps on the Power Supply is Correct
- Test the Compressor
- Test the Main PCB Board
The correct input voltage will be in the manual and on the outside condensing unit tag.
Test the compressor wiring for any shorts and voltages are correct.
Video on F0 error Code at Minute 1:36