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GE Dual Wave II microwave doesn't work, all power controls are out. Is there a user-replaceable fuse?

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A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

Ifthe fuse is good, it may be an open thermostat or thermal cutout (TCO)/ thermal fuse on or near the magnetron or on top of the cavity / bodyof the oven.

If it goes dead for a while during or after cookingthen comes back on, the magnetron is probably overheating and causingthe magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

Whenchecking thermostats, if it has a hood fan thermostat, that should readopen, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Ifit goes dead or blows the breaker (or GFI) when you plug it in or open or closethe door, then there's a problem with a door switch or door switchmount.

If it's intermittent or random, it may be a badconnection, usually on the control board or a loose fuse holder, oreven an intermittent fuse.

You should do a continuity test onthe fuse while it's in the holder (with the microwave unplugged, ofcourse) then turn the fuse by hand or take it out and put it back in,then test it again.

If you remove the fuse, then press the meterleads against the ends, it can allow internal contact to be made andmake a bad fuse appear to be good.

If you or someone you knowdecide to look into it, we have critical safety information anddisassembly information at our site, and our link is at our listing here on FixYa.

Thereshould also be a "mini-manual" hidden inside the unit behind thecontrol panel or hidden on the left side behind the grille, which isvery helpful when troubleshooting & testing.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

We're happy to help you and we'd appreciate yourthoughtful rating of our answer.

Posted on Aug 02, 2008

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GE micro wave oven turn table won't work Model LVM1750DM1BB, #SM900740B


first:check AC chord.,
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If the microwave control panel doesn't light up, then your fuse is blown. unplug the microwave. unscrew the vent grill, (2) screws at the top of the microwave. then you should see 1 screw holding the control panel. after removing that screw, gently push up then out. there should be a metal plate on top of the control panel. remove that plate and the fuse will be in that opening. remove the fuse and check for continuity across the fuse. Replace fuse and microwave should begin working.

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I think I understand what you mean.

If you were to log on to the manufacturer's web site, I think you will be pleasantly surprised as usually one is able to download, by model number, Customer Instruction Manuals, list of Dealers and Driver downloads as required.

Just Google the manufacturer's name and follow the links. Make certain you are directed to the manufacturer's web site as some search engines direct you to other sites and they charge for the information that is normally free of charge.


The magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
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.


I hope this helps.

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I have a ge spacemaker above stove microwave mdl# jmv1652sh and it has quit working.Ii has no power what so ever. I replaced the fuse and it still will not power up. Is there anything else that will...


hi

Look for a fuse that looks like an automotive fuse, the glass tube type, accept the microwave one looks gray or brown instead of clear glass.

Carefully, without touching anything, pull the fuse out and check with multimeter to see if it's good. or Just replace it with another fuse rated at 120 volts. Put the cover back on, put screws in, plug it in and Hopefully you are done.

You can also check the plug to see if the wire are not loose from it.

Thanks


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I have a GE Microwave Oven/Dual Element Browner Model # JES1288SHO3. The inside cabinet is arching through the wave guide panel. DAVE IN LA.


Hi Dave in LA,

The wave gude cover is replaceable, the part number is1085082. The reason for arcing through is typically a splatter of food stuck to the cover and then the heating waves overcooked or burned it. Carefully replace the cover (panel), look for any burned spots behind the cover, if the wave guide is burned through, the Microwave is unrepairable. If the waveguide has small arc spots you can carefully clean (sandpaper) and use touchup paint to recoat. I hope this helps and if it does, please let us know!

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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
h

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Check to make sure the plastic on the shelve holders or tuntable guide did not wear and expose metal. If these holders or brackets are wore and exposed metal it shorted out your micro wave. They need to be replaced and a fuse needs to be replaced inside the control panel,

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GE Dual Wave II microwave oven blowing fuse


It sounds like a shorted high voltage capacitor, a fairly cheap fix. But if it's good, I would suspect the high voltage transformer.

Here are some links you or a friend can use for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/cap_test.html
http://www.gallawa.com/microtech/xformer.html

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Sep 02, 2008 | Microwave Ovens

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