Haier Error Codes

Common error codes

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Haier air conditioning units utilize error codes to indicate specific malfunctions or issues. Below is a list of common error codes along with their descriptions.

Indoor Unit Error Codes

E2

Indoor Coil Freeze Protection

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F1

Indoor Temperature Sensor Fault

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F2

Indoor Coil Sensor Fault

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Outdoor Unit Error Codes

F3

Outdoor Coil Sensor Fault

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System Error Codes

E1

High Pressure Protection

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E3

Low Pressure Protection

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E4

Compressor Discharge Temperature Fault

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E5

Overcurrent / Electrical Load

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F4

Discharge Sensor Fault

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H3

Compressor Overload Protection

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