Question about Microwave Ovens

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I have a KichenAid Electric Freestanding Range (Model No. Kerr500YWHO), it's roughly 17 years old. Last year I had a problem where it took a long time to preheat the oven and then it stopped working. I figured it out by replacing the 250V, 20A fuse. This year the same thing is happening but replacing the fuse did not do the trick. I noticed that the broiler heating element was working but the baking element was not. So I purchased a new baking element. That didn't to the trick; the element is not heating up (now I'm down $116). I guess there is no power going to the element. My next guess would be the control panel? I am open to ideas. The range burners, broiler, and electronic console (timer, clock, ect) work fine.

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  • mtinti Jul 14, 2010

    I thought I was clear in stating everything worked except the baking element so it can not be the house or main wiring. I know the simple answer is to just say replace the $500 control panel. Is this the only answer. I read other support forums and other solutions were high limit switch, bake relay, or a short in the wiring going to the control panel. Does any of these make sense?



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Control Panel sounds like a place that could cause your problem, but I am concerned about that 250V, 20A fuse. That is more on the power side than the logical side.

If the electronic console (timer, clock, etc.) work fine, then I am inclined to believe that that part is ok.

Sometimes heat will cause problems with the consoles, but Kitchenaid is known for being fairly reliable in their dishwasher, stoves, and other appliances for being durable in this respect.

I searched Kitchenaid's site for model no. Kerr500YWHO and could not find any literature for it.

So your down $116 because you replaced the baking element.

I looked to see if there were other models like your 17 year old range
at the following address and to see if there were similar model #

I, also, checked all of the FAQ's for 'electric range' and found nothing relevant to your particular baking element not heating up.

My guess is that an internal conductor that leads to the baking element has become broken, dislodged, or cracked causing the lack of heat on the part you installed.

I would recommend that an authorized service person for Kitchenaid investigate this further.

I suspect that the problem is located somewhere inside the back of the electric range or the bottom of it where the conductors are for the baking element.

Thanks for asking for a solution from

Posted on Jul 14, 2010

  • mtinti Jul 14, 2010

    So it sounds like you think it's somewhere in one of wires leading to or from the baking element?

    Does the high limit switch make any sense for the cause?

    I guess I will first search all wiring to see if I can see any visual damge. My concern about calling in a repair person is that $200 later they will want to replace the elctronic control ($500) and for $1000 I could probably replace the entire unit.

    My thinking is that if I cannot find the wire causing the problem I probably should not invest in fixing and look for new.

  • Duane Wong
    Duane Wong Jul 14, 2010

    I think that if you disconnect the baking element and then use a test light self powered or a multimeter with a continuity beeper, you can test to see if the thick wires leading to the baking element are continuous yourself. You might find some burnt connections somewhere, as well.

    The resistance should be rather low in a good wire leading from the console to the baking element.

    If you call the repairman, you can ask him NOT to replace the $500 console and have him check only the wiring.

    And, if it turns out it is something more expensive, then opt out of paying for that repair.

    I would say that if you got 17 years out of the appliance, that's a long time, and you got your money's worth.

    Good luck with this repair.


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Fuse/circuit breaker Check to see if power is getting to the range/oven. Does anything turn on--even a light? If not, check for a blown fuse or tripped circuit breaker. Main wiring Often the main wiring connection from the house, at the range/oven, gets burned and so breaks the connection. Then you may have to replace the power cord to the range/oven, and the terminal block that the wire is attached to. Range/oven wiring There may be a broken or burned wire at the back of the range/oven. If you repair any of the wires, use only proper appliance-grade wire and wire connectors.

If with all this, the problem seems not to be solve, then, you will need to replace the control panel as it is defective.

Take care.

Posted on Jul 14, 2010

  • Sulaimon Jimoh Olayemi Jul 14, 2010


    Usually, when an oven won't bake, it's because the
    bake element is burned out. The bake element is the black, pencil-
    thick tube at the bottom of the oven. When the oven heats, the element
    glows red. This element has an expected life-span of several years. It
    may last for only one; it may last for many more. When the element burns
    out, you need to replace it.

    Here are two instances of when food "bakes

    When the food you're baking is done on top but not on
    the bottom--or when baking just takes far too long to finish--the bake
    element may be burned out.

    You may get fooled into thinking it's working,
    because the oven is hot inside. But many electric ovens use the broil
    element, too, during the preheat and bake cycles. So the food may be
    getting heated only by the broil element, which causes poor baking

    If the bake element is burned out, replacing it
    should solve the problem. Otherwise, you need to further troubleshoot
    the oven's electrical system to locate the defective wire or component.

    When the temperature is consistent but too high or too
    low, it could be one of several different things. First check to see if
    the thermostat sensing bulb has come loose from its holder. It could be
    lying on the floor of the oven or resting on the heating element. This
    would cause the oven to not heat correctly.

    If the thermostat bulb is not dislodged, it's likely
    that the thermostat or sensor is either mis-calibrated or defective.

    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.

    Take care.



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