Question about GE JTP85 Electric Double Oven

1 Answer

Microwave will turn on but not heat

My GE JTP55 electirc double oven microwave turns on but does not heat. The oven works fine. Microwave light and all functions can be pressed and will make noise but not heat. Any suggestions?

Posted by Cookingmom on

  • 3 more comments 
  • Aslam Haswarey Jan 11, 2008

    I have

  • Aslam Haswarey Jan 11, 2008

    Same problem as Cookingmom. I suspect the magnatron. How can you tell if the magnatron is bad?


  • reddy57 Feb 12, 2008

    GE Microwave JTP85BOA turns but does not heat.

  • Murphy28 Apr 11, 2008

    I have the same problem. The fuse and the door switch are OK. What can be next possible cause ?

  • Anonymous Jul 21, 2008

    less than 2 months after recall repair, GE JTP85 micro sounds loud and smokes when turned on

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1 Answer

Ginko

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  • GE Master
  • 19,396 Answers

Test the high voltage capacitor, the rectifier diode.or the magnetron.

If it additionally does not spin and no light, then check also the door switch.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
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. (here in UK).

Posted on Apr 27, 2009

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