Question about Microwave Ovens
Hi I have a JVM1490 that is dead. I have chased the failure to a small transformer on the pc control board. The primary is open. Where can I purchase this transformer? Thanks ~bill
Posted by Anonymous on
There should be a "mini-manual" (tech sheet) hidden inside the unit
behind the control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
It *may* have the part number of the low voltage transformer, possibly on a loose sheet inside the mini manual.
Otherwise, you can find links to helpful exploded view diagrams and part ordering help here.
I recommend that you bookmark that link to your favorites.
There should be a part number on the label of low voltage transformer.
The GE part number will be something like WB##x##### and the Samsung number will be something like DE_#######.
The Samsung part number is almost always cheaper.
Feel free to contact me directly if you need more help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on May 16, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
Jan 12, 2017 | Microwave Ovens
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Dec 02, 2011 | GE SpaceMaker Microwave Ovens
The magnetron may have either failed or
is not being supplied with the extremely high voltage required to run
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.
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