A16CI4H4R36

Malfunction Information Table

Name of Malfunction	Display of indoor unit	State of the lamps on the outdoor unit PCB
	Error Code	Yellow	Red	Green	Reasons
Compressor running (normal)		blink 1 time			Part of normal operation
Automatic defrosting (normal)	H1	blink 2 times			Part of normal operation
Anti-freezing protection	E2	blink 3 times			Refrigerant leakage / indoor unit airflow blocked up / filter duty
Stop for IPM module protection (over current)	H5	blink 4 times			IPM model over current / outdoor unit air flow blocked up
Stop for over current protection	E5	blink 5 times			Outdoor unit over current / ambient temperature is abominable
Overload protection	H4	blink 6 times			Ambient temperature is abominable / heat exchanger is blocked up
Stop for exhaust protection	E4	blink 7 times			low refrigerant / capillary blocked up / ambient temperature is abominable
Stop for compressor overload protection	H3	blink 8 times			Compressor shell overheat / low refrigerant / capillary blocked up
Stop for overpower protection	L9	blink 9 times			Ambient temperature is abominable
Stop for IPM module protection (overheat)	H5	blink 10 times			IPM module overheat / outdoor unit airflow blocked up
Stop for EEPROM read-write function	EE	blink 11 times			The EEPROM on the outdoor PCB mainboard cannot read or write
Stop for low voltage protection	PL	blink 12 times			DC voltage is too low
Stop for high voltage protection	PH	blink 13 times			DC voltage is too high
Stop for PFC circuit over current protection	HC	blink 14 times			The PFC circuit over current
No feedback of indoor fan motor	H6	/	/	/	Indoor fan is abnormal
Stop for ID and OD doesn't match	LP	blink 16 times			The indoor unit and outdoor unit does not match
Compressor frequence limit by over current protection			blink 1 time		Outdoor unit over current / ambient temperature is abominable
Compressor frequence limit by exhaust protection			blink 2 times		low refrigerant / capillary blocked up / ambient temperature is abominable
Compressor frequence limit by overload protection			blink 3 times		Ambient temperature is abominable / heat exchanger is blocked up
Compressor frequence limit by anti-freezing protection			blink 4 times		Refrigerant leakage / indoor unit airflow blocked up / filter duty
Outdoor pipe temperature sensor malfunction	F4		blink 5 times		Open circuit or short circuit for outdoor condenser pipe temp. sensor
Outdoor ambient temperature sensor malfunction	F3		blink 6 times		Open circuit or short circuit for outdoor environment temp. sensor
Outdoor exhaust temperature sensor malfunction	F5		blink 7 times		Open circuit or short circuit for outdoor gas-discharge pipe temp. sensor
The indoor temp. reach to operate compressor (normal)			blink 8 times		Part of normal operation / Compressor preparing to run
Compressor frequence limit by IPM protection			blink 11 times		IPM module overheat / outdoor unit airflow blocked up
Compressor frequence limit by over power protection			blink 13 times		Ambient temperature is abominable
Indoor ambient temperature sensor malfunction	F1				Open circuit or short circuit for indoor environment temp. sensor
Indoor tube temperature sensor malfunction	F2				Open circuit or short circuit for indoor environment pipe temp. sensor
Stop for communication malfunction	E6			off	Communication line failure / main PCB failure / interfere source / connect line wrong
Communication is normal				blink 1 time	Communication is normal
Jumper cap malfunction protection	C5				The jumper misfit the main board
No feedback from outdoor fan motor			blink 14 times
High pressure protection	E1		blink 16 times
Note: The lamps blink 0.5s on, 0.5s off. There is a 2s off interval between error codes.