Error code reference

Haier Air Conditioner Error Code F4

Overheat protection for exhaust (discharge) temperature: compressor discharge temperature exceeded 117°C.

SourceHaier Air Conditioner - Service Manual: HSU-18,22HVA103/R2(DB)p. 82

Diagnostic procedure

The full F4 procedure

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First diagnostic step

Restart and measure exhaust temperature at the compressor sensor; check for refrigerant leak if temperature exceeds 110°C shortly after startup.

SourceHaier Air Conditioner - Service Manual: HSU-18,22HVA103/R2(DB)p. 82

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Where this code is documented

3 manuals in the MyPros+ library document this code for Haier air conditioner.

Models covered by the manuals that document this code

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The full F4 procedure

Where this code is documented

Models covered by the manuals that document this code

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