Question about Microwave Ovens
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Posted on Jan 02, 2017
SOURCE: Cannot heat
Sounds like it overheated, tripped the thermostat, then the thermostat reset. Chances are you have a bad magnetron. GE may have a campaign (not a "recall", mind you!) to offer free replacements if yours is a model that has a known history of problems with the magnetrons. I would call GE and ask them about that. *grin* GE Answer Center 1-800-626-2005 24 hours a day, 365 days a year
Posted on Dec 14, 2006
Depending on which brand you have I would think that the Thermal switch on top of the magnetron or one of the door switches has probably given up the ghost. However, if the display does not come on you probably have a micro or Psu fault on the display panel. Not to be attempted if you are not familiar with microwaves or electronics. Please unplug before opening. Good Luck, JUS004
Posted on Jan 05, 2008
SOURCE: No power from Whirlpool.
The problem was a defective switch. There are 3 switches on mine. 1 on the top door latch, and 2 on the bottom. one of the switches on the bottom connected the power and neutral together, unless it was activated at the same time as the other 2, causing the breaker to trip or the internal fuse to blow. When unhooking the wire going from this switch to the other switch, everything works great now. Though I still need to replace the switch.
And for Basic 1. Yes my microwave did have a fuse in it it's ceramic, I got a pack of them at Radio Shack 4 for 3$ 250V 20 Amp. There should be a wiring diagram inside the microwave, mine was inside a black bag, so it may be hard to see.
Mine was up top next to the fuse behind the Plastic Grill and then a small metal grill. Some are behind the control panel, to fix this remove the screw at the top and then slide the control panel up and it should unhinge.
Posted on Apr 01, 2008
SOURCE: microwave won't heat
Sorry my Clarification Request came out as a single blob of a paragraph.
That's not how I typed it. I never write that way!
So I've pasted it here, but as a solution.
Magnetrons generally should last about 2000 hours, but several factors can shorten that.
If it's not OVER ten years old (from the purchase date or the date on the tag inside the unit) then the magnetron is still under warranty.
From the owner's manual:
"For the second through the tenth year from the date of original purchase
"The magnetron tube, if the magnetron tube fails due to a defect in materials or workmanship. During this nine-year limited warranty, you will be responsible for any labor or in-home service costs.
"For the above limited warranty: To avoid any trip charges, you must take the microwave oven to a
General Electric Customer Care® servicer and pick it up following service. In-home service is also
available, but you must pay for the service technician’s travel costs to your home."
GE Customer Service is here, and you can verify the warranty status and find your nearest authorized servicer.
If you're sure the magnetron's bad, it's still under warranty, and you or a friend are handy, they will send you the magnetron to do it yourself. Call them at 888-239-6832.
Be persistent. You may have to speak with a supervisor.
It does sound like the magnetron overheated and the magnetron's thermostat opened until it cooled down.
An overheating magnetron can be due to:
When you hit Start to microwave, do the inside light, cooling fan, and turntable all come on?
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.
You can find helpful exploded view diagrams and order parts if needed by entering your full model number from the tag on the oven here.
Let us know what you find out or decide.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Jul 07, 2009
It might be that the internal power fuse of the MW may have blown. You may have to just replace that fuse if possible. Other wise the electronics (most likely a circuit board) may have been blown.
Posted on Oct 17, 2009
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