P3 outdoor ambient temperature too low.
Mini split inverter compressor drive error.
P0 ipm malfunction or igbt over strong current protection.
P1 over voltage or over low voltage protection.
F5 outdoor fan speed has been out of control.
Ac pro mini split troubleshooting p0 p4 error code.
Loose wire on the printed circuit board that drives the compressor bad printed circuit board or a bad compressor.
Inverter compressor drive error.
Requires a trained tech.
P4 inverter compressor drive error.
My pioneer 12000 btu mini split is showing p4 i pulled the cover of the control panel looking led i can t see any where are they located.
Ipm malfunction or igbt over strong current protection.
Compressor discharge temperature sensor open circuit or short circuit.
P4 is an inverter compressor drive error.
Over voltage or too low voltage protection.