When you push cook time and a time, or just hit the auto 1,2,3,or 4 minutes, it lights up on the display like it is cooking, with the timer till finished going and everything, but it does not actually cook. The display acts just like its cooking tho. I have tried turning off the circut breaker to the ovens, and also, have tried setting the child lock and taking it off.

SOURCE: microwave stopped working completely

Fan turned on after cooking because a thermostat got to hot and tripped turning on the fan to try to cool the unit.  The unit went completely dead when thermal fuse tripped which is located above the cavity on the left side.

William Miller

• 9179 Answers
• Posted on Nov 17, 2007

SOURCE: GH7145XFB-1 not heating properly

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

SOURCE: Model jvm131h002 Stopped working. no power or

yes, at the back of the microwave there are 4 or 6 screws, take them out and then pull the cover follow the cable( the one you connect to the outlet) going to the inside of the microwave inside you will see the fuse change it with the same size, it is a slow burn fuse

SOURCE: electronically everything works EXCEPT the

It's possible the magnetron tube, the microwave source, has gone bad, or one of the parts in its power supply has failed. There may be bad connections on the control circuit board, or the board itself is not working properly. One of the door interlock switches may be bad or is out of adjustment. The most frequent cause is the magnetron, particularly is you've had the oven for a while and it's gotten lots of use. Just like in a light bulb, wires in the magnetron can burn out, and one day the oven just quits heating.

Because of hazardous voltages present and the chance of microwave leakage if repairs aren't done correctly, you should leave servicing to a professional. A service shop can diagnose the problem and give an estimate. Or you can look at new ovens, which is often a more economical choice. The magnetron is the most expensive part to replace; between the part cost and labor charge, it's often not much more to buy a new oven. Sometimes a new oven can even cost less.

Hope this helps you decide what to do. Thanks for using Fixya!