Haier HB21FC45N Series Service Manual page 40

SERVICE MANUAL
Model: HB21FC45N*
9-4-3. When the freezer temperature sensor (F SNR) is in malfunction, it shows F2 on
cabinet display board.
1. Take down the evaporator fan motor cover, check whether the connector of freezer sensor is in
right position, and ensure the wire connector is in good connecting status.
2.Disconnect the connector, Test the resistance between two black wires, the normal resistance
should be 1～20K ohm approximately, if the ohm number is infinite or zero, it means the sensor or
the connecting wire is defective.
If the sensor is normal, reconnect the connector.
3. Check whether the connector of main control PCB is in right position.
4.Test the resistance between two black wires(CON4), the normal resistance should be 1～20K
ohm approximately, if the ohm number is infinite or zero, it means that the connecting wire in
cabinet is defective.
Issue 2010-07-05
Rev. Ref1007S019V0
40