Model reference
Haier HSU-18HVA103/R2(DB)
Air Conditioner
1 document16 error codes4 service modes
Available documentation
Service Manual
- HSU-18,22HVA103/R2(DB) Air Conditioner Service Manual141 pg
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Error codes (16)
CodeMeaning
E1Room temperature sensor failure (indoor unit thermistor open or short circuit).E14Indoor fan motor malfunctionE2Heat-exchange sensor failure (indoor unit pipe thermistor open or short…E4Indoor EEPROM errorE7Communication fault between indoor and outdoor units.E9High work-intense protectionF1The protection of IPM (Intelligent Power Module)F11Compressor operation deviates from normal.F12Outdoor EEPROM errorF19Power voltage is too high or too low.F21Frost-removing (defrost) temperature sensor failure (outdoor unit).F22Overcurrent protection of AC electricity for the outdoor model.F25Exhaust (discharge) temperature sensor failure (outdoor unit).F3Communication fault between the IPM module and outdoor PCB.F4Overheat protection for exhaust (discharge) temperatureF6Ambient temperature sensor failure (outdoor unit).Service modes (4)
- Emergency OperationPress the emergency operation switch on the indoor unit once
- Power Failure Compensation ModePress the sleep key 10 times within 7 seconds
- Test OperationContinue to press the test operation switch (same as emergency switch on indoor unit) for more than…
- Trial Running (Indoor Unit)The indicated frequency for trial running is 58Hz, wind volume is strong
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