F2
Haier
Ambient Sensor Circuit Error
Freezer displays F2, temperature display may flash.
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Possible Causes
Failed ambient NTC sensor, Wiring harness damage, Loose connector at control board, Defective main PCB
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing the control panel area.
- Find ambient sensor: Usually near the control panel or behind a small grille on the cabinet front.
- Test sensor: Disconnect and measure resistance. Replace if open/shorted or far from spec.
- Inspect harness: Repair any damaged wires and ensure connectors are fully seated.
- Replace PCB if needed: If sensor and wiring are good, replace the main control PCB.
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Repair Difficulty
Easy
2/5
Required Part
Ambient NTC Sensor
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