Haier air conditioner fault codes

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

Error CodeFault DescriptionFault unit
E7Communication faultIndoor unit
E1Room temperature sensor faultIndoor unit
E2Heat-exchange sensor faultIndoor unit
E4Indoor EEPROM errorIndoor unit
E14Indoor fan motor malfunctionIndoor unit
F12Outdoor EEPROM faultOutdoor unit
F1The protection error of IPMOutdoor unit
F22Overcurrent protection of AC electricity for the outdoor modelOutdoor unit
F3Communication fault between the IPM and outdoor PCBOutdoor unit
F19Power voltage too high or too lowOutdoor unit
F4Overheat protection error of exhaust temperature sensorOutdoor unit
F21Defrost temperature sensor faultOutdoor unit
F7Suction temperature sensor faultOutdoor unit
F6Ambient temperature sensor failureOutdoor unit
F25Discharge temperature sensor faultOutdoor unit
F11deviate from the normal for the compressorOutdoor unit
F28Loop of the station detect errorOutdoor unit
F2Overcurrent of the compressorOutdoor unit
F23Overcurrent protection for single-phase of the compressorOutdoor unit
E9High work-intense protectionOutdoor unit
F66Ambient temperature sensor fault

Haier air conditioner fault codes

CodeFlash time of
compressor
running
indicate lamp
Trouble contents (old)Trouble contents (new)
E010drainage system troubledrainage system trouble
E11indoor temperature sensor brokenindoor temperature sensor broken
E22indoor coil temperature sensor brokenindoor coil temperature sensor broken
E33outdoor temperature sensor brokenoutdoor temperature sensor broken
E44outdoor coil temperature sensor brokenoutdoor coil temperature sensor broken
E55over current protect limitover current protect limit
E66pressure protectpressure protect
E77communication trouble between wired remote controller and indoor unitthree phase protect
E88communication trouble between indoor and outdoor unitCommunication trouble between wired remote controller and indoor unit
E99three phase protectcommunication trouble between indoor and outdoor unit