Question about Jenn-Air M439 Microwave Oven

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Jenn air microwave....

Everything seems to work except it does not heat up. the sound of when it is trying to heat seems to sound like somethig is binding up.

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Probally the belt is broken on fan up at the top.

Posted on Mar 13, 2009

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1 Answer

Jmv9169


1-could be bad connections at the magnetron remove the wires and put back (un plug and discharge the capacitor
2-check diode or replace
3- check capacitor
use a ohm meter

Dec 08, 2013 | Jenn-Air JMV9169BAS Convection Microwave...

1 Answer

Jenn air microwave makes zapping sound and won't heat food


Possible bad inverter board (power) and or the Magnetron which does the main heating.

Oct 31, 2012 | Jenn-Air Microwave Ovens

1 Answer

Acts like working, but no heat.


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

dgyj57we

Apr 21, 2010 | Jenn-Air JMC7000 Microwave Oven

1 Answer

Everything works, sounds normal, but it will not heat anything.


Owners of a GE WES model might want to look at this blog post.

Hopefully its still under warranty.

If so, GE Customer Service is here.

If not, I'd replace the oven.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Jan 08, 2010 | Jenn-Air JMV8000 Microwave Oven

1 Answer

Microwave is not cooking/heating.


sounds like the magnatron they can just go out like a light bulb easier to buy a new microwave hope this helps regards Jim

Apr 13, 2009 | Microwave Ovens

1 Answer

Our Jenn-Aire Model JMV8196AAS Microwave is not heating anything.



If it is working but not heating, then test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.If turntable is not running check also the door switch.

The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.



All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

You can also order from MicrowaveSvc , they also provide parts.

Mar 07, 2009 | Jenn-Air JMV8196 Microwave Oven

1 Answer

Jenn-Air JMC7000 Microwave stop working


I have the same unit and age the JMC7000 everything appeared normal on the display and countdown etc...But it would not heat,I trouble shooted the problem and discovered it was a faulty door switch I replaced it and it works like new again.I ordered the part from www.repairclinic.com it's an easy fix.and costs a few bucks...

Dec 19, 2008 | Jenn-Air JMC7000 Microwave Oven

1 Answer

Everything works but no heating?


With inside light and turntable on, louder sound, and no heat, this is usually a shorted high voltage rectifier diode or a bad magnetron.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Aug 14, 2008 | Jenn-Air JMV8196 Microwave Oven

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