Haier fault codes
What each code means, from Haier's own service literature, and which UK models it applies to.
Haier air conditioning
E1Room temperature sensor failure14 modelsE2Indoor heat-exchanger sensor failure14 modelsE4Indoor EEPROM error18 modelsE7Indoor ↔ outdoor communication failure (outdoor LED1 × 15)16 modelsE14Indoor DC fan motor fault14 modelsF1IPM (power module) protection (outdoor LED1 × 2)15 modelsF2Compressor over-current (outdoor LED1 × 3/24/25)15 modelsF4Discharge temperature overheat protection (outdoor LED1 × 8)15 modelsF12Outdoor EEPROM error (outdoor LED1 × 1)18 modelsLED9Outdoor DC fan motor fault68 modelsLED6Supply over/under-voltage68 modelsLED10Defrost temperature sensor failure68 modelsLED11Suction temperature sensor failure68 modelsLED12Ambient temperature sensor failure68 modelsLED13Discharge temperature sensor failure68 models
Knowing the code is the easy half
A code names a symptom, not a root cause. The app takes the same code and walks the fix: what to measure first, the expected values for your exact model, and a verdict that tells you when the machine isn't actually broken.
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