Haier Ductless Split Air Conditioners

27 fault codes documented

Condensate at air outlet

Condensate water forming at the air outlet

Water droplets are observed at the air outlet of the indoor unit. This can occur when the horizontal louvers are adjusted to extreme left or right positions, particularly during high humidity conditions.

Condensate drain issue

Condensate water not draining correctly

The condensate drain line is not effectively removing water, which can lead to pooling, bad odors, or the unit failing to operate. Common issues include improper slope, blockages, or the drain line end being submerged.

Condensate on louver

Condensate water forming on vertical louver

Water droplets are appearing on the vertical louvers of the indoor unit. This typically happens in COOL or DRY modes if the louver is kept in a downward position for too long.

E1

E1 - Room temperature sensor failure

The indoor unit displays E1, meaning the sensor that measures the room temperature is not working correctly.

E14

E14 - Indoor fan motor malfunction

The indoor unit displays E14, indicating a problem with the fan motor inside the indoor unit, which is responsible for circulating air.

E2

E2 - Heat-exchange sensor failure

The indoor unit displays E2, indicating a problem with the heat-exchange sensor, which monitors the temperature of the coils.

E4

E4 - Indoor EEPROM error

The indoor unit displays E4, indicating an error with the indoor unit's EEPROM, which stores essential operating data.

E7

Error E7 — Indoor and Outdoor Unit Communication Error

The indoor unit display shows 'E7', indicating a problem with the communication between the indoor and outdoor units. This means the units cannot exchange necessary information for proper operation.

F1

F1 (2 LED flashes) - IPM protection triggered

The outdoor unit's LED1 flashes twice, indicating that the Intelligent Power Module (IPM) is under protection due to an issue.

F11

F11 (18 LED flashes) - Compressor operating outside normal parameters

The outdoor unit's LED1 flashes eighteen times, indicating the compressor is operating outside its normal parameters.

F12

F12 (1 LED flash) - Outdoor EEPROM error

The outdoor unit's LED1 flashes once, indicating an error with the outdoor unit's EEPROM, which stores essential operating data for the outdoor unit.

F19

F19 (6 LED flashes) - Power supply voltage too high or low

The outdoor unit's LED1 flashes six times, indicating that the power supply voltage is outside the acceptable range (either too high or too low).

F2

F2 (24 LED flashes) - Overcurrent of the compressor

The outdoor unit's LED1 flashes twenty-four times, indicating an overcurrent condition affecting the compressor.

F21

F21 (10 LED flashes) - Frost-removing temperature sensor failure

The outdoor unit's LED1 flashes ten times, indicating a failure with the sensor responsible for detecting frost during defrost cycles.

F22

F22 (3 LED flashes) - Outdoor AC overcurrent protection

The outdoor unit's LED1 flashes three times, indicating that the AC electricity supply to the outdoor unit has triggered an overcurrent protection.

F23

F23 (25 LED flashes) - Overcurrent protection for single-phase of the compressor

The outdoor unit's LED1 flashes twenty-five times, signaling an overcurrent protection activation specifically for the single-phase operation of the compressor.

F25

F25 (13 LED flashes) - Exhaust temperature sensor failure

The outdoor unit's LED1 flashes thirteen times, indicating a failure with the exhaust temperature sensor in the outdoor unit.

F27

F27 (7 LED flashes) - Compressor locked rotor or momentary stop

The outdoor unit's LED1 flashes seven times, indicating that the compressor has either locked up or temporarily stopped functioning.

F28

F28 (19 LED flashes) - Loop of the station detect error

The outdoor unit's LED1 flashes nineteen times, indicating an error in the 'loop of the station detect' system, which likely relates to refrigerant flow or pressure.

F3

F3 (4 LED flashes) - Communication fault between IPM and outdoor PCB

The outdoor unit's LED1 flashes four times, signaling a communication problem between the Intelligent Power Module (IPM) and the main Outdoor Printed Circuit Board (PCB).

F36

F36 (39 LED flashes) - Middle part of condenser temperature sensor failure

The outdoor unit's LED1 flashes thirty-nine times, indicating a failure with the temperature sensor located in the middle part of the condenser.

F4

F4 (8 LED flashes) - Overheat protection for exhaust temperature

The outdoor unit's LED1 flashes eight times, indicating that the exhaust temperature has exceeded safe limits, triggering an overheat protection.

F6

F6 (12 LED flashes) - Ambient temperature sensor failure

The outdoor unit's LED1 flashes twelve times, indicating a failure with the outdoor ambient temperature sensor.

F7

F7 (11 LED flashes) - Suction temperature sensor failure

The outdoor unit's LED1 flashes eleven times, indicating a failure with the suction temperature sensor in the outdoor unit.

F8

F8 (9 LED flashes) - Outdoor DC fan motor fault

The outdoor unit's LED1 flashes nine times, indicating a problem with the outdoor unit's DC fan motor, which helps dissipate heat.

Lamp not lighting

Unit display lamp not lighting normally

The indicator lamp on the indoor unit's display is not lighting up as expected, or it is showing an unusual pattern. This could signal a power issue or an operational fault within the unit.

Unusual noise

Air conditioner making unusual noise

The air conditioner unit is producing abnormal sounds during operation, such as rattling, humming, or squealing. This indicates a potential issue that requires investigation.