UNIT NEEDS DEFROSTING WEEKLY.

TM 5-6640-213-14

Table 4-2. Ice Maker Troubleshooting -Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. UNIT NEEDS DEFROSTING WEEKLY.

Step 1. Check if hot airis entering the front grille, causing unit to frost

up.

Assure that cool air supply is entering front grille.

Step 2.

Check for poor door seal, causing frost-forming warm air to

enter storage compartment or the door is not closed tightely.

Replace door seal if defective. Always ensure that the door

is properly closed.

Step 3.

Check if chemical content of the water has changed, causing the

water to freeze at a different temperature.

4. THE ICE MAKER IS FREEZING UP, STOPPING ICE CUBE PRODUCTION.

Slow current leakage through electric solenoid valve, causing continuous

freezing.

Replace solenoid valve.

5. ICE MAKER FAILS TO PRODUCE ICE.

Step 1.

Ejector blades are frozen in and cannot eject the cubes.

Defrost and restart the ice maker.

Step 2.

Faulty door switch causing malfunction of ice maker.

Replace door switch.

Step 3.

Low voltage or switch in unit compartment is in OFF position.

Check line voltage. Place switch in ON position.

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