There is a faulty component inside the unit that is why it is not turning on. The power is working fine, because it is the power that operates the fan. Therefore the panel light that is not turning on is as a result of a bad component. In order to be sure what the faulty component is i will advice that you run a test on the oven, test the oven selector switch, to test the switch,
- There are many styles of ranges. If this does not describe your range, refer to your owner's manual for instructions on gaining access to your oven selector dial.
- Now you can begin to test each pair of switch contacts for continuity with your VOM. Using the ohmmeter function, set the range scale to R x 1, and touch one test lead to each terminal of the switch contacts to be tested.
- There will be several pairs of contacts, one pair for each setting (eg. broil, bake, etc.). Refer carefully to your wiring diagram (often placed on the inside of the access panel) when testing. It is a good idea to label the wires as you test and only remove one pair of wires at a time. If there is no continuity between any pair of contacts, the switch is defective and must be replaced.
To install a new oven selector dial switch,
- Remove the old switch from the control panel by undoing the nut or screws holding the switch in place, leaving all wires attached.
- Transfer the wires one at a time from the old switch to the correct terminal of the new switch.
- Check your wiring diagram to make sure all wires are on the correct terminals.
- Now mount the new switch to the back of the control panel and replace the cover.
Also you need to test the thermostat of the oven to be sure the problem is not from there,
- Access the oven thermostat, which is located in different places depending on the make and model: On freestanding ranges, access the thermostat by removing the screws that hold the back panel in place at both ends. On models with front-loading controls, remove the panel and tilt it for access. Be careful not to let the wires disconnect from their components. Some built-in models have a removable back splash. Lift the backsplash, rest it on the cook top and remove the screws from the back splash, which holds the rear panel. On wall ovens or eye-level ranges, access the control panel by opening the door and removing the screws that secure it. The screws may be under the exhaust hood or below the control panel. If the control panel is hinged, simply tilt it towards you. On some models both the rear and front control panels must be removed. The screws may be found on the trim and occasionally the trim must be removed.
- When testing the thermostat switch contacts for continuity, refer to the wiring diagram and remove only those wires being tested - and only one pair at a time. Test switch contact terminals as per your wiring diagram. If the switch lacks continuity at any of the contact terminal points then the entire thermostat switch needs to be replaced.
- Adjusting the thermostat: Test the oven temperature by placing the tester in the oven's center and leaving it for 30 minutes at 350 degrees. Record the minimum and maximum temperatures of three cycles, then add those figures together, divide the result by six and you have the oven's average temperature. If the average temperature is more than 25 degrees off, try calibrating the thermostat by following your appliance manual instructions for thermostat calibration.
- Normally, thermostats are calibrated by pulling the oven's thermostat knob off, turning the knob over and adjusting the calibration ring on the back. If your oven doesn't have a calibration ring you may need to replace the thermostat.
To replace the thermostat of the oven, please follow the steps below:
- Disconnect the capillary tube and push it through the back oven wall, being careful not to break the flammable capillary tube wire.
- Remove the screws that secure the thermostat to the control panel and gently pull the thermostat out, leaving the wires in place.
To install a new thermostat,
- Reverse the disassembly procedures,
- Transfer the wires individually from the old unit to the new.
Hope this helped. Thank you for using fixya.