Haier wall mounted type air conditioner error codes

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

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

outdoor
Communication 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 protection
Compressor 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

abnormal
Outdoor 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

failure
Outdoor 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

Failure 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

Failure code for AP422ACEAA

Number

of

flashes
Centralized

control

readout
Panel

display
Fault descriptionPossible causeRemedy
101DE1Fault in indoor ambient

temperature sensor
Sensor is open-circuit or

short-circuit for 2min or longer.
Restorable when given

corrective signal.
202DE2Fault in indoor coil

temperature sensor
Sensor is open-circuit or

short-circuit for 2min or longer.
Restorable when given

corrective signal.
311DE3Fault in outdoor ambient

temperature sensor
Sensor is open-circuit or

short-circuit for 2min or longer.
Restorable when given

corrective signal.
412DE4Fault in outdoor coil

temperature sensor
Sensor is open-circuit or

short-circuit for 2min or longer.
Restorable when given

corrective signal.
510DE5Overcurrent/ Power

failure
Detected 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 units
Communication 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.

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