Question about Panasonic NN-P794SF Microwave Oven

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Runs5 seconds, no heat and smells something burned

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I would call an authorised Panasonic microwave repair service as they can be awkward to repair.

Posted on Mar 19, 2011

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Posted on Jan 02, 2017

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What to do when oven smells like burning plastic


new ovens do have a certian amount of "burn in" to do when there new best to heat up and cool off oven several times before actuall food use to remove any construction solvents and "cure" all the materials inside

also ck to make sure you removed all the shipping packing sometimes this gets left inside by accedent and smells something horrible when heated ( caution :: Foam degrades to cyanide deadly gas when heated!!!!)

Sep 08, 2014 | Microwave Ovens

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My panasonic will run for about six seconds and stops, and smells like burning wires and it shows a message "SENSOR RE-HEAT PRESS START"


If it stops after 7 seconds, it has a problem with the inverter.

If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor. But I don't think that's the issue here.

It may be a loose connection in the wiring between the inverter, magnetron, and/or control board, or maybe one of those components has failed.

Due to the lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these.

You can find an authorized Panasonic servicer here.

In Canada, you can find an authorized Panasonic servicer here.

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

Nov 30, 2012 | Microwave Ovens

1 Answer

My Kenmore 721.626222 which I have had about 6 years, runs but does not heat. There is also a strange smell - something like a burning smell.


When the oven does not heat, the problem is usually due to the magnetron failing. It the part that generates the microwaves that heat the food. It fails by shorting out causing a loud buzzing noise. The burning smell is the being magnetron overloaded due to the short. It not worth fixing since the replacement cost of a magnetron is close to the price of a new oven. Sorry.

Feb 09, 2011 | Kenmore 62622 Microwave Oven

2 Answers

Our Sharp microwave oven turns on, makes a loud humming noise, starts to smell like something is burning, but doesn't heat. Well, actually, we don't think it heats, we're too scared to let it run because...


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Dec 10, 2009 | Sharp R-530ES Microwave Oven

1 Answer

I have a Kenmore Elite microwave oven... 69-65e05590-000637. We noticed that it would not heat food or liquids... played with the power level a bit and it started to heat again...then a day or two later we...


Is this oven still under warranty? If so, take advantage. If not, remove the power plug and the case. Short out, with a screwdriver, the large can-shaped capacitor with two terminals sticking out. Check the wiring and circuit board for signs of burning. If everything looks ok, remove the thin sheet metal wave guide that sits above or beside the microwave energy port into the cooking cavity. Under the sheet metal, there is a metal fan-like device called a 'stirrer' that has a plastic bearing. Remove this stirrer and smell the bearing. If it smells like the burning wire smell, replace the stirrer. You can buy it through 'Sears Parts' online.

Sep 14, 2009 | Microwave Ovens

1 Answer

Daewoo kor-861h, electrical smell and will not heat.


Turn if off, and leave it alone, remove it, if you can remove the unit, take it in for service, something is wrong if you smell electrical, most people for some reason can smell and identify correctly electrical or at least insulation burning smells, which means something is burning internally, not safe, fire hazard, unit needs to be repaired by qualified technician or replaced with new unit, take no chances, nothing you can do to repair this, could be a shorting transformer, or shorting power cables, but to attempt to trouble shoot this with email is a long shot, and depends on your experience expertize and testing equipment.

I wish I could give you a short easy answer, but the hazard and your safety is more important than a microwave.

Will

Nov 30, 2008 | Daewoo KOR-860A Microwave Oven

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