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Microwave whirlpool JT 379 won't heat up

After showing "error 2" it appeared to be working (allows programming, rotates) but fails to heat food up, both in the microwave and oven functions. In the stand-by position it claims to be set to other functions, e.g. "6th sense".

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: microwave oven does not warm food up

I have not solved my problem,I have decided to buy a new microwave rather than pay for this amount of money on a telephone advice when you have said on your site that it is free.I will also spend further amount of money, to call an electrician after your advice,so I will be better of buying a new one.

Posted on Jun 11, 2009

catriver
  • 878 Answers

SOURCE: My Sharp R-340D microwave works perfectly but Does NOT HEAT FOOD

Waleed, Since the microwave is going through all its motions we can feel safe that the oven and magnetron thermostats are ok. If they were bad you would not have a display. Just inside the control panel to the left, you have 3 switches which the door activates. A primary (top switch) a secondary (bottom switch) and a monitor switch (middle). If the primary or secondary switch is not closing when the door is shut, you high voltage side will not activate, therefore no heat. If the monitor switch failed or found either the primary or secondary switch closed with the door open, it would blow the main fuse and the oven would be dead. Therefore Im leaning on either the primary or secondary switch not operating correctly. When checking these switches, unplug and discharge the capacitor. This is high voltage. Good luck

Posted on Jun 17, 2006

  • 97 Answers

SOURCE: MICROWAVE OVEN NOT HEATING UP FOOD

Will need to pull apart to check....common failure with magnatron fuse....but could be magnatron, capaciter, diode. sugg to have a tech look at....if your not able to check, also call manufacturer, sometimes will cover.

Posted on Jun 10, 2009

tgmusicgirl
  • 91 Answers

SOURCE: my delonghi 800w microwave oven works but does not heat up food

If your handy with getting the cover off and looking inside... check the obvious.
I suspect :
fuse
thermister
relay
If both microwave and Heating elements dont work, then I will assume the magnetron is ok, ans we are dealing with a high voltage issue... and you will need at best... a volt meter and or neon troublelight...
moust appliances have a simple schematic inside... I would start with the heating element first... trace wiring back to circuit board... usually one side of the heating element is connected to the white wire (neutral) and live (Hot) side is controlled thru the circuit board... so finding the neutral should be easy... then trace with neon light or voltmeter...

I know easy for me to say... but with everything else working... it doesnt seem to be the microprocessor that controlls the unit...

Posted on May 06, 2010

mosekha
  • 23 Answers

SOURCE: My microwave starts however food does not heat up.

Micro wave as the name suggests produces heat when the micro waves aimed at an object causes the water molecules inside the object to vibrate hence producing heat.The gadget responsible is the magnetron. If your magnetron is not receiving ht voltage or receiving but faulty, then your micro wave wont work please take precaution when opening micro wave due to high voltage caps that remain charged sometimes even when it is off.check the high voltage fuse/ diode and capacitor if they are fine and the step up trans former o.k then the only option is to replace the magnetron

Posted on Aug 02, 2010

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