All Installation Instructions for General Electric Microwave JEM25DM3WW

When opening door the microwave would turn on.

Watched How to repair a Microwave that turns on when the door is opened Video on the web. From this took a shot at the switch was the problem. When I removed the switch it was defective. The small button was in and when you turned the switch upside down the button would drop back into position. Ordered a switch for $25.oo , installed it and the microwave is working fine.

Parts Used:

Secondary Door Switch

Clarence from Rocky Ridge, OH
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers

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Started with a burning smell and eventually no operation at all.

Took the screws out that held the oven case on. Looked around and found a connection on the oven cavity thermal cut out the plastic melted and black looking. I knew this was the problem but I checked the fuse anyway and the fuse was good, so I ordered the part from part select and they shipped it out fast and now my microwave is working again.

Parts Used:

Oven Cavity Thermal Cut Out

Butch from Gulfport, MS
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers

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One of the rollers on my turntable guide became squared so that the roller wheel would not turn.

I opened the box, took the turntable guide out and put it under the microwave plate.

Parts Used:

Turntable Guide with Rollers

Nancy from Inverness, IL
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins

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Light worked, timer and control pad worked, but no turntable, no heat, no noises of any sort, just didn't start up

It was a snap using the instructions given. The key is getting into the unit. I did have to use a multimeter to find the failed switch since there are two of that type.

Parts Used:

Secondary Door Switch

Timothy from Middletown, NJ
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Wrench set

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Oven Cavity Thermal Cutout Open

Remove cover-the hardest part, as I needed to buy a new set of driver bits that included the dimpled security drivers to remove three screws. GE includes schematic and troubleshooting flow chart with the unit, taped inside the cover. Required more time to look up the part on-line and order it than time used to make the repair.

Parts Used:

Oven Cavity Thermal Cut Out

Marion from Coupeville, WA
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers

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Microwave would not turn on

I removed the cover this required a special star Apex tip witha hole in the center. $10 for a set at Lowes.Replaced the fuse and Thermal cut out at the same time. The oven woks like a charm.I would like to add that GE customer service was no help basically told me that it was a throw away unit. If they built it you can fix it.Hope this helps any DIY breathern outthere.

Parts Used:

Oven Cavity Thermal Cut Out

Bill from Lexington Park, MD
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers

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Microwave stopped working and nothing would show on the display...completely dead. Wife had just heated two separate items, one for about 10 minutes and one for about 6 minutes. Mircowave was hot to the touch.

I googled "Microwave stopped working", and after reviewing numerous websites with suggestions, I found the response noted below at "Help Owl" which was the most straighfoward and clear explanation to trouble shoot the problem. I first tested the Thermal Cut Out (TCO) per the instructions below and that was the problem. I didn't have to test the electrical fuse. Turns out that you cannot typically use the microwave continuously for more the 12 or 13 minutes or it may overheat and the TCO will shut it down. Extremely easy to test for and fix, and the part is only $15! See Trouble Shooting steps as follows: Make sure that the unit is vented properly and that if you are using it for prolonged periods while cooking, that you turn-on the vent fan.
If there is no display / power within the unit...first check your power source where you plug the unit into the wall.

If that is good, Remove the Cabinette/Cover "Note: it has 3-Torx Anti-Tamper Screws".

Then as you face the microwave from the rear, at the left rear corner is a small circuit board with a fuse. "Check the Fuse"

If the fuse is good, Check the following:

1 - The most common component failure is the "Cabinette TCO" (Thermal Cut-Off Thermostat).

As you face the microwave from the rear...It is located under the cover, on top, on the left front corner area.

It is a Circular, Black & Silver Disc Shaped component about the size of a dime in diameter and is about 1/2" in height.

It has Two (2) Wires attached to it's spade connectors and it acts as a safety fuse.

"IF YOU PUT AN INSULATED JUMPER WIRE ACROSS THE 2 TERMINALS THE POWER SHOULD RETURN AND THE DISPLAY WILL LIGHT"

Anything other than these two items should be checked by an Authorized Service Technician as these microwaves have components thay carry "HIGH VOLTAGE SHOCK HAZZARDS"

Parts Used:

Oven Cavity Thermal Cut Out