Question about GE JVM1440 Microwave Oven
On this model, the 20A ceramic fuse is located on the filter board near where the cord comes into the unit.
But if your unit is dead (meaning no display, no light when you open the door and no beeps when you press a pad on the keypad) then it may be a blown fuse or a bad T.C.O. (thermal cutout / thermostat) on top of the oven cavity or on the magnetron.
It may also be the bottom TCO, not to be confused with the hood TCO, which should read normally open.
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.
You can also find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.
If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases in about a week or so.
Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Oct 03, 2012 | GE JVM1850 1000 Watts Microwave Oven
Apr 14, 2011 | GE Microwave Ovens
your appliance has absolutely no functions at all, remove it from the
mains supply, remove the case and see where the mains lead goes in to
the appliance and follow the cable until you find the main fuse.
ONLY USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
The usual cause of this fuse failure is the door switches are contaminated or sticking. Check the door switches before putting power back on to the appliance.
Hope this helps.
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