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Re: Panasonic nn-c781jf start button not working...
Microwave ovens are very complex to work on. You may have a defective door sensor, which will prevent the oven from starting. This is the most common issue.
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This is either the door sensing switch (most likely) or a bad membrane switch [start switch] (that's what Panasonic calls it) on the touch pad. The contacts on the door sensing switch can be slightly contaminated and not read "zero ohms" to the control PCB. The control board thinks that the door is open and it will not allow the cook cycle to start.
@William Miller - where are you located if i'm interested in your help with the microwave repair? I'm having the similar issue with the Start buton not working for my Panasonic NNSD697SS. Thanks
On my NN-L738BA there is a Child Lock feature. You set the child lock by pressing the Start button 3 times. If the Child Lock is enabled it displays the word :CHILD".
To disable this feature on my microwave the manual says to press the Stop/Reset 3 times.
My panasonic microwave model # NN-S540BFW stops after 4 seconds after you hit the start button and cuts off on its own. What is wrong with my microwave?
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