Table 4-1. Oven Troubleshooting Chart

TM 5-6640-214-14

Table 4-1. Oven Troubleshooting Chart

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. HEAT LOSS

Step 1. Check for a faulty door gasket.

If defective, replace gasket.

Step 2. Check for improperly positioned door strike.

Adjust door strike for tighter closure.

2. TEMPERATURE VARIES (VENT CLOSED)

Step 1. Check for an improperly loaded oven.

Test oven empty.

Step 2. Check to see if hot oven is stabilized.

Allow 1 to 2 hours for oven to stabilize.

Step 3. Inspect for faulty electrical connection.

Check all electrical lines and connections.

Step 4. Check for partial failure of components.

Replace faulty switch, thermostat, heaters, or wiring

as required.

3. NO HEAT

Step 1. Check for loss of power.

Check line voltage and connections. Check heaters and

thermostat.

4. LOSS OF HEAT (CONTROL)

Step 1. Check if thermostat contacts are sticking.

Replace thermostat.

Step 2. Check heater for short.

Correct short or replace heater.

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