Error Codes

Error Codes	Explanation	Resolvent
E0	IDU overcurrent protection	Indoor motor or indoor controller
E1	IDU room sensor error	Internal display board or internal motherboard
E2	ODU condenser sensor	Internal main board
E3	AC or DC motor error	Module or adjust power supply phase sequence
E4	ODU and IDU communication error	Internal and external power cord or internal and external controller
E5	ODU and IDU communication error	Internal and external power cord or internal and external controller
E8	Communication fault between display board and PCB board	Internal display board or internal motherboard
Eb	IDU PCB EE error	Internal main board
F0	ODU fan motor error	Outdoor motor or PCB
F1	ODU Module protection error	Module or adjust power supply phase sequence
F2	ODU PFC Protection Error	Controller/compressor/compressor exhaust sensor
F3	Compressor start failure or out-of-step Error	Compressor
F4	ODU discharge sensor error	Compressor discharge sensor
F6	ODU room sensor error	Outdoor environment sensor
F8	ODU communication error between main PCB board and module board	Outdoor module communication
F9	ODU PCB EE error	Outdoor controller
FA	Suction sensor error	Return air sensor fault
Fb	IDU DC motor error (Floor standing)	IDU DC motor error
P2	High-pressure switch protection	Pressure switch or outdoor controller
P3	Lack of refrigerant protection	Lack of refrigerant
P4	Condenser overload protection (Cooling mode)	Condenser or temperature sensor
P5	Discharge temperature protection	Compressor or temperature control sensor
P6	Evaporator overload protection (Heating mode)	Controller or temperature sensor
P7	IDU anti-freezing protection (Cooling mode)	Temperature sensor
P8	ODU overcurrent protection	External controller