Defrost Heater. GE Consumer & Industrial ZIC360NR, ZICS360NR

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Defrost Heater. GE Consumer & Industrial ZIC360NR, ZICS360NR | Manualzz

Defrost Heater

Caution: Use care to avoid scratching the finish on unit walls.

The defrost heater is a single-calrod type, radiant heater mounted under the evaporator.

To remove the defrost heater:

1. Remove the drawer (see procedure).

2. Remove upper right slide/support assembly by removing 3 Phillips screws.

3. Remove lower right slide/support assembly by removing 3 Torx screws.

4. Remove 5 screws, disconnect light and light thermostat wiring, and remove rear duct.

5. Remove 4 screws and evaporator cover.

6. Disconnect the heater lead wires.

7. Remove the clip securing the heater to the evaporator and remove the heater.

Screws

Screws

Evaporator Thermistor

Evaporator Thermistor

The evaporator thermistor is mounted on the upper left side of the evaporator. The defrost cycle will terminate when the main control board detects

45°F from the evaporator thermistor. The main control board must sense 45°F in less than 40 minutes, or the defrost cycle will time out. Average time to defrost is 20 minutes. Defrost time should not exceed 40 minutes. Defrost time does not include dwell and post dwell periods.

Defrost Heater

Defrost Overtemperature Thermostat

The defrost overtemperature thermostat (bimetal switch) is mounted on the evaporator and provides overtemperature protection during defrost. This thermostat will open at 65°F and will close at 45°F.

Note: The main control board will not know if the heater does not come on due to a broken heater, open defrost overtemperature thermostat, or open wiring harness. The defrost heater is controlled by maximum time on the main control board or temperature at the evaporator thermistor.

Defrost Overtemperature Thermostat

Clip

P0003407

P0003343

P0003343

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