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To replace thermostat in SUK91MFX5 - how to get top off to access thermostat switch

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I can not get the oven to come on. It is pluged in and the stove top works. The oven runs off electric and the top is both. No one can fix it and the oven does not heat up at all.


Most of the time, whn this problem occurs on ovens, it is mainly caused by the ovens thermostat. Run a test on the oven thermostat and replace it if it is faulty.
An oven thermostat is a switch that opens and closes in response to the temperature it senses. It is typically found in the control panel, where a liquid-filled temperature-sensing bulb senses and maintains the internal oven temperature by cycling heat on and off.
Before repairs or testing can begin you must disconnect the electricity at the fuse panel, at the circuit breaker panel, or by pulling the plug. Make sure the power is off before proceeding. A jolt from 220 volts can be fatal, use caution!
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 backsplash. Lift the backsplash, rest it on the cook top and remove the screws from the backsplash, 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 remove the thermostat: 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, transferring the wires individually from the old unit to the new.
Hope this was helpful. Thanks for using fixya.

Jan 27, 2011 | Magic Chef Ovens

1 Answer

Thermostat light flashing and none of the oven functions will work (fan, grill, heat etc)


An oven thermostat is a switch that opens and closes in response to the temperature it senses. It is typically found in the control panel, where a liquid-filled temperature-sensing bulb senses and maintains the internal oven temperature by cycling heat on and off.
Before repairs or testing can begin you must disconnect the electricity at the fuse panel, at the circuit breaker panel, or by pulling the plug. Make sure the power is off before proceeding. A jolt from 220 volts can be fatal, use caution!
  1. 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.
  2. 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.
  3. 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.
  4. To remove the thermostat: Disconnect the capillary tube and push it through the back oven wall, being careful not to break the flammable capillary tube wire.
  5. Remove the screws that secure the thermostat to the control panel and gently pull the thermostat out, leaving the wires in place.
  6. To install a new thermostat, reverse the disassembly procedure, transferring the wires individually from the old unit to the new.
Hope this was helpful.Thanks for using fixya.

Jan 26, 2011 | Ovens

1 Answer

The oven does not heat, the fan works but no heat. The amber panel light on the front doesn't come on either.


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,
  1. 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.
  2. 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.
  3. 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,
  1. Remove the old switch from the control panel by undoing the nut or screws holding the switch in place, leaving all wires attached.
  2. Transfer the wires one at a time from the old switch to the correct terminal of the new switch.
  3. Check your wiring diagram to make sure all wires are on the correct terminals.
  4. 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,
  1. 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.
  2. 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.
  3. 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.
  4. 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:
  1. Disconnect the capillary tube and push it through the back oven wall, being careful not to break the flammable capillary tube wire.
  2. 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,
  1. Reverse the disassembly procedures,
  2. Transfer the wires individually from the old unit to the new.
Hope this helped. Thank you for using fixya.

Jan 21, 2011 | Explorer Appliances B196 ELECTRIC Kitchen...

1 Answer

I have an LG DLE2532W dryer. It suddenly stopped putting out heat. I've heard that there's a heat regulator switch that can trip if the unit overheats located underneath the barrel. What's the easiest...


You r correct. Take top off. Take control unit off. Take front off. Search how to videos online, YouTube, repairclinic.com, appliancepartspros.com

Jun 05, 2017 | LG DLE2532W Electric Dryer

1 Answer

Smeg SUK91MFX5 oven overheating


REMOVE BACK PANEL TURN OFF POWER CHECK WIRING TO & FROM CORD BLOCK

Oct 19, 2009 | Smeg SUK91MFX5 Dual Fuel (Electric and...

1 Answer

Will not dry


Most likely it is the heating element or thermostatic switch that needs replacement. Both need testing and a replacement fitted if defective.

This can be accessed from the top with cover removed. Unplug and disconnect before attempting any internal diagnosis. Online suppliers stock these parts.

Oct 10, 2009 | Dryers

2 Answers

Repalcing an infinite switch on Kitchen Aid KERC607HBS4


If you are replacing the infinite switch, you need to remove the back panel of the console. This may include having to remove all, or part, of the entire back panel to gain full access. If you are replacing the thermostat on the heating element, or the element all together, you will need to lift the cook top up for access. This is acommpished by removing the screws along the front edge of the top panel. You will need to open the oven door to see the screws. Make sure you unplug the range prior to servicing any internal components. I hope this answers your question. If not, please let me know.

Jun 09, 2009 | KitchenAid KERC607HBS Electric Kitchen...

5 Answers

Oven will not switch on


If there is an A only on the clock(no other digits) your clock has failed. Either replace , or can be bypassed. Oven won't work without clock set.

Dec 14, 2008 | Smeg SE250XUK Stainless Steel Electric...

1 Answer

My smeg oven,(bottom fan oven) keeps getting hotter and hotter till it cuts out or the fuse blows when i switch it on no matter what temp i put it on,iam assuming its the thermostat,were is it and how yo...


The thermostat is obviously not working and you will need to replace it.

The thermostat is located behind the temperature selector switch on the control panel. The oven thermostat usually has a capilliary tube attached which goes in to the oven internally and is fixed on to the oven wall you will need to disconnect this also and remove it with the thermostat. Fitting the stat is the reverse of removal.

Make sure the electrical supply to the oven is switched off before starting work Hope this will FixYa.

Please remember to rate this solution.

Dec 12, 2008 | Smeg SUK91MFX5 Dual Fuel (Electric and...

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