Frigidaire oven model FEB500CEBI TEMPERATURE PROBLEMS
The oven temperature does not remain constant. Usually higher than the setting on the knob but it will not stay at the same temperature while cooking. For this model you cannot adjust the temperature by changing the back of the temperature control knob. Do I need a new thermostat?
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The first thing to look for is the temperature probe inside the oven. If it is bent and touching the side of the oven, the oven wall will cool the probe, and the oven will always be to hot.
Then next answers depend on the vintage of the oven.
If the oven always runs 20? hot (for example) it is possible to adjust the set point on older ovens by removing the oven temperature setting knob and by using a long thin screw driver through the centre of the shaft to adjust the oven temperature to match the oven setting. You will need to buy or borrow an oven thermometer.
If the oven won't turn off the oven thermostat is often the cause of the problem. The electrical contacts inside the oven thermostat can weld themselves together and then the oven won't turn off. If this happens, turn off power to the entire appliance at the household circuit breaker or fuse. The oven thermostat usually cannot be tested and must be replaced if defective.
Oven Control Board
The oven control board has a set of relays that turn on and off power to the bake and broil circuits according to the customer settings and sensor input. If the oven won't turn off it could be that one of the relays on the oven control board is shorted closed, providing voltage to the heating circuit. It can be dangerous if the oven won't turn off. Don't leave the oven unattended without turning off power to the oven.
Some ovens are equipped with a relay board. This circuit board has several relays which control the switching of electrical current to the oven heat source. If the oven won't turn off it may be that one or more of the relays on the relay board have failed. If this happens replace the relay board. The relays on the board are not sold separately. ALSO CHECK THE BAKE AND BROIL ELEMENT.
Why is the oven temperature incorrect?
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.
Hello there Electronic
ovens with a digital display use a sensor to monitor oven temperature.
To solve temperature problems for these models, you may need to replace
the sensor. On some digital-display models, you can calibrate the
temperature using the key pad. See your operator's manual for details. Ovens
without a digital display often use a mechanical system for controlling
temperature. On many of these units, you can remove the thermostat knob
and adjust the knob itself to more accurately represent the actual
setting of the thermostat. If,
when you remove the knob, there's a screw on the back of it with a
small calibration plate, you can loosen the screw, adjust the plate,
then tighten the screw again. If the knob isn't adjustable, and the oven
temperature is off by more than 30 to 40 degrees, you need to replace
the thermostat to solve the problem.
I wish I had a solution for you...unfortunately I don't. However, if you know anywhere I might find a thermostat knob for this model I would be eternally grateful. I've been searching for 2 years for my mother. It's the knob with 5 settings (off, bake, broil, time-bake and clean).
Probably. There is often a key sequence that will enable a calibration mode. We need the full model number to find the tech info, or you can probably find it in the tech sheet which is normally taped on behind the control panel.
under the oven knob is the screw that adjusts the temp. remove the knob and with a small blade screwdriver adjust the temp according to your wife's oven thermometer CW+hotter CCW=cooler
then on the back of the knob is a screw to adjust the position of the knob with respect to the marker
Temp probe/thermometer inside oven dirty, or off attachment, or defective. On some models, a small screw head adjustment is provided to calibrate thermometer under dial knob. Else, I would just set dial 50 degrees higher rather than expense of new thermometer or dial.
set both start & stop timers to the same time.Turn on the selector and the temperature knobs to clean. Hold in the light button, on the right top side of oven, and hold for 15 seconds.
then turn off the selector knob. hold button again for 15 seconds and the lock should unlock,
then turn off the temperature knob.