We've replaced a GE JVM2070 with an LG LMV1813 microwave. The unit is vented out the back, but when new unit installed with the microwave damper attached it makes a horrific noise. Wen damper is removed it runs perfectly but we get massive cold air into the kitchen. Any suggestions on how to remedy this?

SOURCE: New microwave; loud fan when heating items

Update: I took it back. After speaking to GE, they said that's just how it is, there is no way to silence or quiet it. I took it back and bought an LG. I love it!

SOURCE: burning odor, no heat

A burning smell along with a different sound (growl) USUALLY indicates a breakdown in the High Voltage Side. This is not a direct short (short circuit) or the line fuse would have blown shutting everything down. The High Voltage Side is made up of-- The Secondary ,or High Voltage Side of The High Voltage Transformer, A High Voltage Diode, A High Voltage Capacitor, and The Magnetron. If The High Voltage Transformer is the problem it will smell like a florescent light ballast burning, and will smell each time you turn on the MW. A HV Diode burns and opens, thus no more smell. A HV Capacitor usually does not burn nor does the Magnetron. There is no Cheap-Fix unless you can see that the HV Diode is burned into and you can get to it to replace. CAUTION: Always unplug from power before attempting to repair. NOTE: If you replace a Diode make sure it goes back in the same direction it came out. Yes there is a front and back.

SOURCE: Ge jvm1650wb005

weve had our fixed before and it's the heating element $75-$100 to fix.

SOURCE: GE jvm2070 microwave touch panel does not work,

The only thing you can do is re set the main board, unplug the unit fot a minimum of 1 hour then try it again, if not you main board is out (this is caused by replacing the light bulbs with out unplugging the micro most of the time) If it is not in warranty I would advise to replace rether than repair, you get an average of 7 years out of them these days. Good luck

SOURCE: ge spacemaker microwave JVM1330BW002 making noise, food not warm

bad news I am afraid. the heart of the unit has had a coronary and needs a tech to intervene