microwave space makejvm1631 i smell a burning wire smell when it is started and nothing will heat up

1 ANSWERS

1. Guest7464
   

   This is probably a bad magnetron, but it may be the high voltage diode or high voltage transformer.
   
   Any unusual noises? Is it louder or quieter than usual?
   
   We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here:
   
   http://tinyurl.com/y9gn7v7
   
   A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet  the mag can be bad without that sound.
   
   Here are some links you or someone you know can use (in order given) for high voltage section test help, but read the safety warnings first:
   
   http://www.gallawa.com/microtech/diode.html
   (if it is NOT shorted or burned looking, it's probably fine)
   
   http://www.gallawa.com/microtech/mag_test.html
   (continuity can be good even though mag is bad!)
   
   http://www.gallawa.com/microtech/xformer.html
   
   You can find links to helpful exploded view diagrams and part ordering help here:
   
   http://www.microwavedisplay.com/parts.htm
   
   I'd recommend that your bookmark this link to your favorites.
   
   Accessing some parts may require you to pull the oven from the wall and remove the cover.
   
   If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.
   
   You can download GE owner's manuals and installation instructions here:
   http://tinyurl.com/dyz83
   
   If it's within the mag warranty (5 to 9 years), G.E. will send you the magnetron to do it yourself. Call them at 888-239-6832 with your model, serial, and manufacturing date.
   
   Let me know if I can help further.

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