Table 5-3. Refrigerator Troubleshooting Chart

TM 5-6640-214-14

Table 5-3. Refrigerator Troubleshooting Chart

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. UNIT WILL NOT RUN

Step 1. Check for blown fuse.

Replace fuse and check for cause of blown fuse.

Step 2. Check for defective thermostat.

Check, if defective replace.

Step 3. Check for defective relay.

Check, if defective replace.

2. COMPRESSOR CYCLES (INTERMITTENTLY)

Step 1. Check for low voltage

Check line voltage, eliminate cause of circuit overload.

Step 2. Inspect for dirty condenser.

Step 3. Check for defective relay overload protector.

Check with wattmeter.

Step 4. Check for loose electrical connection.

Check wiring.

3. UNIT RUNS BUT DOES NOT COOL OR FREEZE TO PROPER TEMPERATURE.

Step 1. Check for defective control.

Check and repair as required.

Step 2. Check for dirty condenser.

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