Haier wall mounted type air conditioner error codes

The error code seen on the display of your Haier air conditioner is sometimes enough to solve the issue and make the appliance work by performing a few simple steps. Below, you will find lists of error codes for several models of Haier wall-mounted type air conditioners. For each error code, there is a description of the problem, sometimes provided with troubleshooting tips.

Haier error codes for wall mounted unit (AS182AVERA)

Failure codedescriptionRemark
E1Indoor room temperature sensor failureIndoor room temp. sensor in short circuit, or open circuit, it can resume due to the signal.
E2Indoor coil temperature sensor failureIndoor coil temp. sensor in short circuit, or open circuit, it can resume due to the signal.
E4EEPROM wrongBeing electrified to test E2 check sum, or E2 is broken down.
E7Communication failure between indoor and outdoorCommunication failure alarms for 4 minutes contineously, it can resume due to the signal.
E14Indoor fan motor failureIndoor fan motor wrong wiring or indoor fan motor abnormal.
E18Temperature cutoff protectionOutdoor 4-way valve response abnormal.
F1Module failureOutdoor module abnormal
F2Outdoor DC motor failureOutdoor DC motor abnormal
F4Compressor overheat / discharging temperature protectionCompressor discharging temperature over high protection
F5Module over current / current transducer failure
F6Outdoor ambient temp. sensor abnormalOutdoor ambient temp. sensor in short current or open circuit
F7Outdoor suction/defrosting temp. sensor abnormalOutdoor suction/defrosting temp. sensor in short circuit or open circuit
F8High pressure abnormalHigh pressure too high
F9Low pressure abnormalLow pressure abnormal
F10No AC power supply
F11Outdoor PCB EEPROM abnormalBeing electrified to test if the E2 check sum is correct or failure
F13Communication failure between outdoor PCB and module
F14Compressor discharging temp. sensor failureOutdoor compressor discharging temp. sensor in short circuit or open circuit
F15Compressor running faultyResumable
F16Running state-detecting circuit failureOutdoor DC compressor running state-detecting circuit failure, or compressor abnormal, resumable

Haier fault code for AP482AKEAA

Fault descriptionOperation panel display
Indoor ambient temp. sensor failureE1
Indoor coil temp. sensor failureE2
Outdoor ambient temp. sensor failureE3
Outdoor coil temp. sensor failureE4
CT current failureE5
Pressure protectionE6
Communication failure between indoor units and panelE8
Communication failure between indoor and outdoor PCBE9

Haier failure code for AP422ACEAA

Number

of

flashes
Centralized

control

readout
Panel

display
Fault descriptionPossible causeRemedy
101DE1Fault in indoor ambient temperature sensorSensor is open-circuit or short-circuit for 2min or longer.Restorable when given corrective signal.
202DE2Fault in indoor coil temperature sensorSensor is open-circuit or short-circuit for 2min or longer.Restorable when given corrective signal.
311DE3Fault in outdoor ambient temperature sensorSensor is open-circuit or short-circuit for 2min or longer.Restorable when given corrective signal.
412DE4Fault in outdoor coil temperature sensorSensor is open-circuit or

short-circuit for 2min or longer.
Restorable when given corrective signal.
510DE5Overcurrent/ Power failureDetected CT current is above the limit three times within 30min.Restorable after repair.
614DE6Fault with high pressureHigh pressure switch is activated three times within 30min.Restorable after repair.
905DE9Communication error between indoor and outdoor unitsCommunication error lasts 4min or longer.Restorable when given corrective signal.
1415DE4Fault in discharging temperature sensorensor is open-circuit or short-circuit for 2min or longer.Restorable when given corrective signal.
626DE6Fault with low pressureLow pressure switch is activated over 30s.Restorable after repair.

Haier failure code for fix frequency outdoor unit unit(AU*EAA):

Failure descriptionCode on wired

controller
Flash times of indoor

receiver board
Room temp. sensor abnormal01Power LED flashes 1 times
Indoor coil temp. sensor abnormal02Power LED flashes 2 times
Outdoor temp. sensor abnormal4APower LED flashes 3 times
Outdoor coil temp. sensor abnormal49Power LED flashes 4 times
Over-current malfunction/Power failure48Power LED flashes 5 times
High / Low pressure abnormal53Power LED flashes 6 times
Communication malfunction between indoor and wired

controller
07Power LED flashes 8 times
Communication malfunction between indoor and outdoor

abnormal
06Power LED flashes 9 times
Drainage system malfunction08Power LED flashes 10 times
Alarm of exterior annunciator0BPower LED flashes 11 times
Coil gas pipe temp. Sensor abnormal03Power LED flashes 12 times
Temperature protection malfunction0DPower LED flashes 13 times