Frequently Asked Questions

ERROR SIGNALS THAT DISPLAY ON YOUR UNIT

Understanding the error codes that display on the Indoor Unit.

E0 - (Common at Start Up) - Lost Communication between Indoor and Outdoor Units (If at initial startup, check for miswiring or broken or disconnected Cable #1, Leftmost of 3, may be labelled differently)
E1 - Indoor Temperature Sensor Fault
E2 - Indoor Pipe Temperature Sensor Fault
E3 - Outdoor Pipe Temperature Sensor Fault
E4 - Refrigerant System Leakage or Fault
E6 - Malfunction of the Indoor Fan Motor
E7 - Outdoor Air Temperature Sensor Fault
E8 - Outdoor Discharge Temperature Sensor Fault
E9 - Outdoor IPM Module Fault
EA - Outdoor Current Detect Fault
EE - Outdoor PCB EEPROM Fault
EF - Outdoor Fan Motor Fault
EH - Outdoor Suction Temperature Sensor Fault
FX - Advanced Troubleshooting Codes - Contact Tech Support for Assistance
P4 - Compressor Overload (If at initial startup, check that refrigerant valves are open)