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Microwave turns on, but, does not heat up the fopd?

if all the lights light up and oven doesn't produce any heat (you tried it with a cup of water) then its possible a safety switch in and around your door frame has gone bad keeping it from heating , this is a safety and should not be bypassed, also keep in mind poking around in there , that microwaves (depending on power level) have as much as 2500 volts in them, a appliance tech can let you know if switch is bad in less than a hour of labor

Nov 22, 2016 | Microwave Ovens

1 Answer

Oster microwave OM1101NOE wont heat carosel turns light is on time runs but not heat

There are three things to consider, the magnetron "heats food" high voltage diode "sometimes cracks" and the high voltage capacitor "sometimes shorts" one or more can cause the symptom of no heat. I recommend a professional to assess.

Mar 08, 2012 | Oster Microwave Ovens

1 Answer

Model MH6141XKQ-1- won't heat- blows air from the top vent and plate does not go around

microwave model mh6141xkb=1 fan and light go on,but turn table will not turn or heat up.

Jan 15, 2011 | Whirlpool Microwave Ovens

1 Answer

Everything works OK but will not heat anything

Look at magnatron for holes, diode, and HVTransformer..Depending on age of microwave you may need a new one.

Jun 15, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer


the lock on the door could be loose so the microwave light will turn on but it wont heat u should press on the door or buy a new one emai me at

Jul 21, 2009 | Microwave Ovens

1 Answer

Spacemaker XL1800 all working, not heating

Your magnatron tube is junk, you can get it replaced by a repair place, but if your microwave is not an expensive one, you may want too just buy a new one, mag tubes genraly run around $70.00 and up

May 02, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Lg wavedom microwave food not heating

I have a problem with my LG microwave wavedom .it makes a loud noize and i does light up and turns around but its not heating any of the food which i put in to warm. Can anyone can help please? What can i do?

Nov 20, 2008 | Microwave Ovens

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