Ipm malfunction or igbt over strong current protection.
Mini split inverter compressor drive error.
Outdoor fan speed has been out of control.
P1 over voltage or over low voltage protection.
Loose wire on the printed circuit board that drives the compressor bad printed circuit board or a bad compressor.
P0 ipm malfunction or igbt over strong current protection.
Requires a trained tech.
Ac pro mini split troubleshooting p0 p4 error code.
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.
Inverter compressor drive error.
P3 outdoor ambient temperature too low.
F5 outdoor fan speed has been out of control.
Over voltage or too low voltage protection.
P2 high temperature protection of ipm module or compressor top.
P4 inverter compressor drive error.