Haier Air Conditioner Error Codes

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

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

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

Haier Commercial Air Conditioning:

• Flash times of LED on mainboard: 1
• Trouble description: Eeprom failure
• Analyze and diagnose: Outdoor main board eeprom fail

• Flash times of LED on mainboard: 2
• Trouble description: IPM failure
• Analyze and diagnose: IPM failure

• Flash times of LED on mainboard: 4
• Trouble description: Communication error between main board and spdu module SPDU Communicition error
• Analyze and diagnose: Communication fail over 4 min

• Flash times of LED on mainboard: 5
• Trouble description: High pressure protection
• Analyze and diagnose: System high pressure over 4.15 Mpa

• Flash times of LED on mainboard: 6
• Trouble description: Module over-voltage protection/ Module lack-voltage protection
• Analyze and diagnose: Send from Spdu module

• Flash times of LED on mainboard: 8
• Trouble description: Compressor discharging temperature protection
• Analyze and diagnose: Compressor discharging temperature over 110 centigrade

• Flash times of LED on mainboard: 9
• Trouble description: Abnomal of DC motor
• Analyze and diagnose: jam of DC motor or motor failure

• Flash times of LED on mainboard: 10
• Trouble description: Abnomal of pipe sensor
• Analyze and diagnose: Piping sensor short-circuit or open-circuit

• Flash times of LED on mainboard: 12
• Trouble description: Abnomal of outdoor ambient sensor
• Analyze and diagnose: Outdoor ambient sensor short-circuit or open-circuit

• Flash times of LED on mainboard: 13
• Trouble description: Abnormal of compressor dischage sensor
• Analyze and diagnose: Compressor discharging sensor short-circuit or open-circuit

• Flash times of LED on mainboard: 15
• Trouble description: Communication error between indoor and outdoor unit
• Analyze and diagnose: Communication fail over 4 min

• Flash times of LED on mainboard: 16
• Trouble description: Lack of refrigerant
• Analyze and diagnose: check if there is leakage in the unit

• Flash times of LED on mainboard: 17
• Trouble description: 4-way valve reverse failure
• Analyze and diagnose: Alarm and stop if detect Td-Tci<=15 last for 1min after compressor has started for 10min in heating mode, confirm the failure if it appears 3 times in one hour.

• Flash times of LED on mainboard: 18
• Trouble description: Compressor jam (ony for spdu )
• Analyze and diagnose: Inner compressor is abnormal jamed

• Flash times of LED on mainboard: 19
• Trouble description: Module EEV select circuit error
• Analyze and diagnose: Module EEV select wrong circuit

• Flash times of LED on mainboard: 25
• Trouble description: Compressor U-phase over-current
• Analyze and diagnose: The current of compressor U-phase is too high

• Flash times of LED on mainboard: 25
• Trouble description: Compressor V-phase over-current
• Analyze and diagnose:  The current of compressor V-phase is too high

• Flash times of LED on mainboard: 25
• Trouble description: Compressor W-phase over-current
• Analyze and diagnose: The current of compressor W-phase is too high

• Flash times of LED on mainboard: 45
• Trouble description: Low pressure protection
• Analyze and diagnose:  System over pressure under 0.05Mpa

Haier Cassette AC Error Codes

The remote receiver can indicate the failure code

Safety Instructions and Warnings:

Before starting the air conditioner, read the information given in the User’s Guide carefully.

The User’s Guide contains very important observations relating to the assembly, operation and maintenance of the air conditioner.

The manufacturer does not accept responsibility for any damages that may arise due to non-observation of the following instruction.

Haier Window Type AC Error Codes

Abnormity Diagnose

1. Sensor diagnose: 2 seconds after the sensors open circuit or short  circuit, the unit will turn off automatically and the LED will show E0 until  the sensors resume.
2. Keystroke circuit error diagnose: When power on for the first time, the  PCB will check the keystroke circuit, if the sampling value is different with  the theory value, the LED will show E1, which means failed keystroke circuit. The keyboard is locked and so invalid, but the remote control is working normally.

Maintenance Service and Trouble Shooting

If air conditioner does not operate:

• Check if unit is plugged in.The plug may have come loose.
• Check if the unit is in “off” mode.
• The fan control may be in “off” position.

Air from air conditioner is warm:

• The A/C setting may need to be raised.
• The temperature outside the room is below 65°F。The conpressor will not cycle on if the temperature outside is below 65°F.

Ice formation on cooling coils:

• Outside temperature too cold .Set the unit on fan only setting to defrose ice.
• Lower temperature setting.Temperature setting may be too cold.
• Unit BTU may be too high for the room

Haier Wall Mounted Type AC Error Codes

Failure code for wall mounted unit(AS182AVERA) —- displayed on the indoor LCD:

Haier Portable AC Error Codes and Troubleshooting:

Troubleshooting

Problem: Unit does not start or operate

Possible Cause:

1. Power supply cord is not plugged into an outlet.
2. Power supply cord has tripped.
3. The Power button has not been pressed.
4. There is no power to the electrical outlet.
5. A household fuse has blown or a circuit breaker has tripped.
6. The control was programmed for a Time Delay.
7. The batteries in the remote control are dead.
8. The internal water tank is full.

Solution:

1. Plug the power cord into a grounded 3 prong outlet.
2. Press and release the RESET button on the power supply cord.
3. Press the Power button on the Control Panel or Remote Control to turn ON the air conditioner.
4. Plug a working lamp into the outlet to check for power.
5. Replace the fuse or reset the circuit breaker.
6. Cancel the Time Delay.
7. Replace the batteries.
8. Empty the water tank.

Problem: Air conditioner is working but the room is not cooling.

Possible Cause:

1. The room temperature is hot.
2. The control is set incorrectly to Fan or Dehum mode.
3. Airflow is restricted.
4. Temperature set too high.
5. Air filters are dirty or restricted.
6. Air conditioner installed incorrectly.
7. Doors and windows are open.

Solution:

1. Allow time for the room to cool when you first turn on the unit.
2. Set the Mode to Cool and the Fan Speed to High.
3. Remove any obstacles to the airflow and redirect airflow for uniform cooling.
4. Lower the set temperature.
5. Clean the air filter.
6. Check the exhaust hose and window panel for proper installation.
7. Close the doors and windows to the room being cooled to prevent cooled air from escaping.

Problem: Remote control is not working

Possible Cause:

1. Batteries are dead.
2. Batteries are installed incorrectly.

Solution:

1. Replace the batteries.
2. Make sure the batteries are inserted in the correct position.

Haier MRV Air Conditioner Error Codes

 Haier  Air Conditioner Manual PDF

Haier Air Conditioner Manual PDF 2

Haier Cassette AC MANUAL PDF

Haier WindowType Air Conditioner Manual PDF

Haier Portable AC Manual PDF