Question about Panasonic NN-S254BF Microwave Oven

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Panasonic Model nn-s252bf.....not heating probably

In have this issue with my microwave.  We purchased the item new in 2003, it worked great for the first couple of years while we were in our new home, however, we seem to be having a heating issue.  For example; it used to just take 2:30 to heat up a bag of popcorn, now takes like 5 minutes.  Sa,e goes for boiling water, only 1 minute then, now more like 2-3 minutes.  It is an over the range type, we really like how it matches our kitchen and hope this isn't something drastic, maybe just a blown fuse in the microwave itself that I could easily repair.  Any suggestions would be greatly appreciated.


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  • taxmaan Nov 12, 2007

    We too bpought this microwave new.. worked great, then last week we heard two "pops" and now it heats really slow. I wonder if the invertor circuitry may be an issue as this machine has an invertor that reduces the amount of power being used ??? I would have thought if the magnetron was gone... it would not heat at all??? COMMENT ?

  • imreido Jan 19, 2008

    Have the same problem. I seems the power setting is only at 5. Is there anywhere I can get an illistrated parts breakdown for this? I want to locate the magnetron.

  • webbs55 Jan 23, 2009

    Ours just gives a couple of 'clicks' and turns off!? Any thoughts



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Check magnetron related circuit, any loose contact is there the above problems comes to oven, thats why check all wiring at high voltage section...

Posted on Oct 29, 2007


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