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Makes nosie and runs but doesnot heat up food

Will not heat up food

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DOESNOT HEAT FOOD


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Feb 02, 2011 | Kenmore Microwave Ovens

1 Answer

The microwave is running with a big noise and can not heat food


The magnetron "heats food" has probably failed and is loading down the high voltage transformer making it labor as it runs, also the high voltage diode and capacitor must checked since they are part of the high voltage system. This not be cost effective to repair.

Feb 01, 2011 | Sharp R-630D Microwave Oven

1 Answer

Our emerson microwave will not make anything hot.put in time for something to cook it runs fine but it will not make the food hot HELP!!!!! the sides and top and bottom of microwave are warm but food is...


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Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Sep 14, 2010 | Emerson Microwave Ovens

1 Answer

The microwave is making a humming noise as it runs and the food does not get hot.


your high voltage capacitor or diode in the high voltage doubler circuit is open and can't help double the high voltage to operate the magnetron tube to make food heat

May 16, 2010 | GE JVM1630 Microwave Oven

1 Answer

Microwave Won't Heat


Check the door safety interlock switches. Be careful of the capacitor, potentially dangerous.

If the switches dont make a connection, the magnetron will not energize ... no heat

Apr 19, 2010 | Microwave Ovens

1 Answer

My microwave oven runs but it doesnot heat food.


HI, i would first remove the over and, inspect the cut off thermal fuse located near the Magnetron tube. A busted fuse will show no continuity so, of its dead replace it. if there is continuity, replace the magnetron tube.

Jun 21, 2009 | GE Microwave Ovens

1 Answer

It turns on ...lights up but doesnot heat or warm the food


Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

Apr 17, 2009 | DeLonghi MW 605 Convection/Microwave Oven

1 Answer

Microwave will not heat food


Dear Pam,

I am familiar with this problem...

It can be the drive belt for the microwave dispersing unit (fan), which is an quick, inexpensive repair... a burned wire, which is also a quick, inexpensive repair... or a chip on the circuit board that has blown, most likely due to a lightning strike or other power surge, not as quick and a little more expensive to repair...

My recommendation is to unplug the microwave, take the cover off after removing the cover screws with a screwdriver, and just be nosy... take a good look for something obvious like any of the above items...

Write back if I can be any further help...


Elex

Jan 11, 2009 | GE Microwave Ovens

2 Answers

GE PRofile Microwave runs but no heat


This is a sure sign that the magnatron needs replaced ( This is what heats the food!) replace and all will be good again!
PLEASE rate my response to your question
Thank
You!

Jan 10, 2009 | GE JVM1870 Microwave Oven

1 Answer

Micro turns on but doesnot heat also turn on by self


Hello bbmasonjim,
If your micro turns on ( meaning everything seems to be working from the control panel) and you aren't getting microwave energy to heat food..you may have any number of damaged or defective components : Magnetron Tube, Filament Power Supply or HV Capacitor.. None of which are something the untrained person should mess with. Even unplugged, there is High Voltage potential inside the electronics compartment. If it is less than a year old, it may still be under warranty.. otherwise.. the cost to repair would probably be higher than the cost to replace..

Regards,
Rick

Dec 13, 2008 | LG LRM1250 Microwave Oven

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