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Strummer,
If the problem is the inline fuse then you do not have to remove the microwave. Just open the control panel. If the problem is the TCO then you do have to remove the microwave.
Gene.
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Originally Posted by: Gene  Hi Nick, Most likely the problem is a blown cavity thermostat (#1430 on the Diagram #5). Gene. Hi Gene, My KEA 120 just died while using the convection oven as well. I'd like to know how common it is for the Thermostat-upper heaterPart # WB21X10046which is #1430 on the diagram you referenced to die? I'm just about to order it but want to make sure this is the cause since it has helped some of the others here. Thanks! Tom
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Originally Posted by: boneycat ...I'm just about to order it but want to make sure this is the cause... Tom, Nobody can tell you that without proper diagnosis. Otherwise it is just guessing. Gene.
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Originally Posted by: Gene Tom,
Nobody can tell you that without proper diagnosis. Otherwise it is just guessing.
Gene. Quite true. But the guy you helped had only checked his fuse before you said it was probably the thermastat. Which is why I asked how common it was for that to go out since 2 others had the same problem and results. I have checked the 2 fuses and they are both good as well. Thanks, Tom
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After doing a more extensive search I've found that if you are using the convection oven at 450 degrees it is extremely common for the thermostat to to fail due to a poor design. Its purpose is to detect heat, if things get too hot, it switches from on to off. When they go bad - it stays in the off position. The effect looks as if you don't have your microwave plugged into the wall. I hope this helps all future people effected by this. Here's a link I found on the the detailed inner workings of the microwave: http://www.microwavedisplay.com...m_sca1000_sca1001_sm.pdf. Flow Chart I used specifically was on page 42 titled "Unit Dead (Blank Display)". 3 things to look for to be open: fuse; Cavity TCO; and Magnetron TCO. My cavity TCO (called thermostat-upper heater for my specific kenmore elite advantium 120 model) was open which is what I will be replacing. Very easy to get to considering there are 3-4 things to take off before you see it.
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Rank: Advanced Member
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Hi Tom,
Thank you for this useful information.
When I said "guessing" I meant the common problem does not mean it happens every single time, and it has to be confirmed to avoid wasting of money.
Gene.
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Im not sure who you are Gene. But your postings here were extremely helpful to me and I fixed a clients microwave quite easily thanks to this thread. Thanks
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Originally Posted by: boneycat Awesome thread; thanks Gene and everyone else for some great feedback! Helped me determine that the cavity TCO (the one on the top-left-front of the microwave, above the door) in my Advantium was bad. And I figured this out from this forum after two visits from a Sears repairman accomplished nothing and wasted precious $$$. (He thought it was hood TCO...)
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Hello all!
I have the Kenmore Elite - Advantium 120 Model # 3636370 that most everyone has referred to on the post. April 2008 our microwave/convection oven dead while using the convection portion...dead...no display of any sort. We had it repaired and told it was the TCO board.
Just last night while using the convection oven, the oven went dead again. This was the first time using the convection oven since the new part was replace and because it had been over a year the warranty is no good. It appears to be the exact same problem...the TCO board.
My question is...why does this same problem continue to happen? Is there something else that could cause the TCO board to fail a second time?
Thanks.
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The TCO is not really a board, just a little fuse-like device. About the diameter of a dime, and a little bit taller.
I'd sure like to know why it continues to happen. That was the 2nd time our's went flat out dead. Seems like a really stupid design. At the very least, have the thing reset once it cools down so that the power can come back on.It could have displayed a message that it was overheated. No need to power off the control panel.
Oh well, at least I know how to fix it now. :)
Tom
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