Haier Air Conditioner Error Codes

Failure code for wall mounted unit – Displayed on the indoor LCD:

Error Code	Description	Remark
E1	Indoor room temperature sensor failure	Indoor room temp. sensor in short circuit, or open circuit, it can resume due to the signal.
E2	Indoor coil temperature sensor failure	Indoor coil temp. sensor in short circuit, or open circuit, it can resume due to the signal.
E4	EEPROM wrong	Being electrified to test E2 check sum, or E2 is broken down.
E7	Communication failure between indoor and outdoor	Communication failure alarms for 4 minutes contineously, it can resume due to the signal.
E14	Indoor fan motor failure	Indoor fan motor wrong wiring or indoor fan motor abnormal.
E18	Temperature cutoff protection	Outdoor 4-way valve response abnormal.
F1	Module failure	Outdoor module abnormal
F2	Outdoor DC motor failure	Outdoor DC motor abnormal
F4	Compressor overheat / discharging temperature protection	Compressor discharging temperature over high protection
F5	Module over current / current transducer failure
F6	Outdoor ambient temp. sensor abnormal	Outdoor ambient temp. sensor in short current or open circuit
F7	Outdoor suction/defrosting temp. sensor abnormal	Outdoor suction/defrosting temp. sensor in short circuit or open circuit
F8	High pressure abnormal	High pressure too high
F9	Low pressure abnormal	Low pressure abnormal
F10	No AC power supply
F11	Outdoor PCB EEPROM abnormal	Being electrified to test if the E2 check sum is correct or failure
F13	Communication failure between outdoor PCB and module
F14	Compressor discharging temp. sensor failure	Outdoor compressor discharging temp. sensor in short circuit or open circuit
F15	Compressor running faulty	Resumable
F16	Running state-detecting circuit failure	Outdoor DC compressor running state-detecting circuit failure, or compressor abnormal, resumable

Model: HDU-24CA03/M(R1) HDU-28CA03/M(R1) HDU-36CA03/M(R1) HDU-42CA03/M(R1)

Model: HSU-09/12HVA103/R2(DB)FOR Eorope

Error Code: E1
Fault Description: Room temperature sensor fault
Remark: Indoor room temp. sensor in short circuit, or open circuit, it can resume due to the signal.

Error Code: E2
Fault Description: Heat-exchange sensor fault
Remark: Indoor coil temp. sensor in short circuit, or open circuit, it can resume due to the signal.

Error Code: E4
Fault Description: Indoor EEPROM error
Remark: Being electrified to test E2 check sum, or E2 is broken down.

Error Code: E9
Fault Description: High work-intense protection
Fault unit: Outdoor unit

Error Code: E7
Fault Description: Communication failure between indoor and outdoor
Remark: Communication failure alarms for 4 minutes contineously, it can resume due to the signal.

Error Code: EC
Fault Description: Refrigerant Leakage

Error Code: F12
Fault Description: Outdoor EEPROM fault
Fault unit: Outdoor unit

Error Code: E14
Fault Description: Indoor fan motor malfunction
Remark: Indoor fan motor wrong wiring or indoor fan motor abnormal.

Error Code: F1
Fault Description: The protection error of IPM
Remark: Outdoor module abnormal

Error Code: F2
Fault Description: Overcurrent of the compressor
Remark: Outdoor DC motor abnormal

Error Code: F3
Fault Description: Communication fault between the IPM and outdoor PCB
Fault unit: Outdoor unit

Error Code: F4
Fault Description: Overheat protection error of exhaust temperature sensor
Remark: Compressor discharging temperature over high protection

Error Code: F6
Fault Description: Ambient temperature sensor failure
Remark: Outdoor ambient temp. sensor in short current or open circuit

Error Code: F7
Fault Description: Suction temperature sensor fault
Remark: Outdoor suction/defrosting temp. sensor in short circuit or open circuit

Error Code: F11
Fault Description: deviate from the normal  for the compressor
Remark: Being electrified to test if the E2 check sum is correct or failure

Error Code: F19
Fault Description: Power voltage too high or too low
Fault unit: Outdoor unit

Error Code: F21
Fault Description: Defrost temperature sensor fault
Fault unit: Outdoor unit

Error Code: F22
Fault Description: Overcurrent  protection of  AC electricity  for  the outdoor model
Fault unit: Outdoor unit

Error Code: F23
Fault Description: Overcurrent protection for single-phase of the compressor
Fault unit: Outdoor unit

Error Code: F25
Fault Description: Discharge temperature sensor fault
Fault unit: Outdoor unit

Error Code: F28
Fault Description: Loop  of  the station detect error
Fault unit: Outdoor unit

Error Code: F66
Fault Description: Ambient temperature sensor fault

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Code: E0
Flash time of compressor running indicate lamp: 10
Trouble contents (old): drainage system trouble
Trouble contents (new): drainage system trouble

Code: E1
Flash time of compressor running indicate lamp: 1
Trouble contents (old): indoor temperature sensor broken
Trouble contents (new): indoor temperature sensor broken

Code: E2
Flash time of compressor running indicate lamp: 2
Trouble contents (old): indoor coil temperature sensor broken
Trouble contents (new): indoor coil temperature sensor broken

Code: E3
Flash time of compressor running indicate lamp: 3
Trouble contents (old): outdoor temperature sensor broken
Trouble contents (new): outdoor temperature sensor broken

Code: E4
Flash time of compressor running indicate lamp: 4
Trouble contents (old): outdoor coil temperature sensor broken
Trouble contents (new): outdoor coil temperature sensor broken

Code: E5
Flash time of compressor running indicate lamp: 5
Trouble contents (old): over current protect limit
Trouble contents (new): over current protect limit

Code: E6
Flash time of compressor running indicate lamp: 6
Trouble contents (old): pressure protect
Trouble contents (new): pressure protect

Code: E7
Flash time of compressor running indicate lamp: 7
Trouble contents (old): communication trouble between wired remote controller and indoor unit.
Trouble contents (new): three phase protect

Code: E8
Flash time of compressor running indicate lamp: 8
Trouble contents (old): Communication trouble between indoor and outdoor unit.
Trouble contents (new): Communication trouble between wired remote controller and indoor unit

Code: E9
Flash time of compressor running indicate lamp: 9
Trouble contents (old): three phase protect
Trouble contents (new): communication trouble between indoor and outdoor unit

HSU-09/12HVA103/R2(DB) For Europe Models:

Error Codes and Description indoor and outdoor display

Indoor and Outdoor: E7
Description: Communication fault between indoor and outdoor units

Indoor Malfunction: E1
Description: Room temperature sensor failure

Indoor Malfunction: E2
Description: Heat-exchange sensor failure

Indoor Malfunction: E4
Description: Indoor EEPROM error

Indoor Malfunction: E14
Description: Indoor fan motor malfunction

Indoor Malfunction: E9
Description: High work-E9 intense protection

Error Codes and Description indoor and outdoor display:

Indoor: F12
Outdoor (LED1 flash times): 1
Description: Outdoor EEPROM error

Indoor: F11
Outdoor (LED1 flash times): 2
Description: The protection of IPM

Indoor: F22
Outdoor (LED1 flash times): 3
Description: Over current protection of AC electricity for the outdoor model

Indoor: F11
Outdoor (LED1 flash times) = 4
Description = Communication fault between the IPM and outdoor PCB

Indoor: F11
Outdoor (LED1 flash times) = 6
Description = Power voltage is too high or low

Indoor: F4
Outdoor (LED1 flash times) = 8
Description = Overheat protection for exhaust temperature

Indoor: F21
Outdoor (LED1 flash times) = 10
Description = Frost-removing temperature sensor failure

Indoor: F6
Outdoor (LED1 flash times) = 12
Description = Ambient temperature sensor failure

Indoor: F25
Outdoor (LED1 flash times) = 13
Description = Exhaust temperature sensor failure

Indoor: F11
Outdoor (LED1 flash times) = 19
Description = Loop of the station detect error