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Haier Error Codes & Troubleshooting

Complete error code database and troubleshooting guide for Haier systems. Find solutions to common issues or contact our experts.

Haier Error Codes

Complete error code reference for Haier systems. Each error code includes severity level, description, and troubleshooting steps.

I1
HIGH
IoT Module Error

Smart connectivity malfunction

Restart system. Check WiFi connection.

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I2
HIGH
Sensor Communication Error

Sensor not responding

Check connections. Clean sensor.

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I3
HIGH
Compressor Error

Compressor not running

Check power supply. Verify contactor.

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I4
HIGH
Fan Error

Fan motor malfunction

Check motor power and operation.

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I5
URGENT
Low Refrigerant

Refrigerant loss critical

Professional leak detection needed.

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I6
URGENT
High Pressure

Pressure exceeds limit

Shut down. Check condenser.

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I7
HIGH
Temperature Error

Sensor malfunction

Clean sensor. Check wiring.

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I8
HIGH
Outdoor Unit Fault

Board malfunction

Check power supply connections.

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I9
URGENT
Wrong Gas Type

Incorrect refrigerant

Professional evacuation immediately.

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I10
HIGH
Overload Protection

Compressor overload

Cool for 30 mins. Check...

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I11
URGENT
Network Error

IoT communication failed

Check control cable connections.

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I12
MEDIUM
Filter Alert

Air filter dirty

Replace filter immediately.

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I13
HIGH
Drain Blocked

Condensate drain obstruction

Clear drain line immediately.

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I14
MEDIUM
Defrost Error

Heating defrost malfunction

Check outdoor ice.

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I15
LOW
Mode Error

Wrong mode selected

Set correct operating mode.

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I16
HIGH
Valve Error

Expansion valve fault

Refrigeration service required.

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I17
HIGH
Power Error

Electrical problem

Check breaker and wiring.

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I18
MEDIUM
Coil Freeze

Outdoor coil frozen

Defrost or COOL mode.

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I19
MEDIUM
Remote Error

Remote malfunction

Replace batteries. Check signal.

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I20
MEDIUM
Noise

Abnormal unit sounds

Professional inspection recommended.

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Preventative Care

Haier Maintenance Tips

Regular maintenance helps prevent error codes and keeps your system running efficiently. Follow these Haier-specific tips for optimal performance.

Still Need Help?

Our licensed technicians specialize in Haier systems and are available 24/7 for emergency repairs and expert support.

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