TM 5-6640-212-14
Table 5-3. Utility Oven Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. LOSS OF HEAT CONTROL.
Check if temperature continues to rise above normal
temperature for the control dial setting.
Check if thermostat contacts are sticking. Clean contacts
or replace thermostat.
2. HEAT LOSS.
Check door strike.
Readjust door release rods as necessary to provide a
good door seal. See figure 5-4.
3. TEMPERATURE VARIES.
Step 1.
Check that vent is not closed.
Open vent to maximum.
Step 2.
Check oven empty.
a.
Oven might be improperly loaded.
b.
Check that all power connections are secure, and
unit is connected to proper power supply.
c.
Check for partial failure of the line switch, thermostat,
or heater bank. Isolate and repair or replace defective component.
5-12
