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Why is the oven temperature incorrect?
WARNING!
To avoid personal injury or death, disconnect your appliance from its power source
before you start any troubleshooting or repair work. Use caution when working inside any appliance.
The oven temperature control is usually controlled by a
thermostat that uses a capillary and liquid filled bulb. When the
bulb's liquid gets heated up, it expands and puts pressure on a
diaphragm which opens and closes a switch that controls the gas to the
burner. Just set the dial to what you need the temperature to be. Over
time, it is possible for your thermostat to lose its calibration.
Sometimes, the thermostat sensing bulb comes loose from the holder. If
it is out of place, the thermostat may be getting faulty readings. If
this is the problem, re-aligning the bulb properly will take care of
this problem.
Digital display models use a sensor to control temperature. If
this is faulty, replace it. Other ovens use a mechanical system to
control the temperature.
On many models, you can adjust your oven thermostat using a
small screwdriver. The adjusting screw is located on the thermostat
valve stem. Remove the knob and you’ll see the screw
underneath it. You want to turn the oven on and run it through at least
two cycles while watching a calibrating thermometer in the oven for
high and low temperatures. Adjust the screw as necessary to fine tune
the temperature.
Some models don’t have an adjustable thermostat, and
you will have to replace the thermostat if you want to resolve the
problem.
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