Question about Panasonic NN-H275 Microwave Oven

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Microwave was running,,,heard loud pop,,,,turntable still turns but micro is not running

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

Microwave Oven Basic Troubleshooting Tips

heatman101
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Posted on Sep 29, 2010

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Posted on Jan 02, 2017

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We purchased a Maytag microwave MMV4205BAQ about 3 years ago when we remodeled our kitchen. I put a cup of water in the microwave to boil and when I touched the Start button, I heard a small POP behind...


if microwave is counting down but no heat you either have a loose connection at the magnatron tube or the thermal cut out fuse that is connected to the magnatron has blown or you have a micro switch, that has failed

Feb 23, 2011 | Whirlpool MMV4205BAQ Microwave Oven

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Less than 5 years old - Microwave Panel lights up, turntable turns, fan works - everything works except it doesn't heat food. Heard a pop, and now it runs louder than before but doesn't heat. Any ideas?


That pop was the magnetron frying. This is a repairable problem, but feirly expensive, around $300 if you have it done by a professional.

Please rate my response if it was helpful to you.

Thanks, Repairman45.

Dec 02, 2010 | Frigidaire PLMV169DC Microwave Oven

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I went to turn light on and heard a loud pop and saw spark. No lights on unit work. Defrost option does not work. Turntable does not work.


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Sep 16, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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MMV5207AAS stainless_steel 1100 Watts Microwave Oven: I heard a pop and now the micro is not heating but...


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May 18, 2010 | Maytag MMV5207AAS Microwave Oven

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Intense squeaking noise


When microwave is running, turntable squeaking when rotating. Can problem be fixed? Microwave is about twelve years old.

Mar 07, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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Microwave popped and now does not heat


Okay, first we need to separate the situations. You were boiling water on the stove and had the range hood fan running to **** up the steam. Then you put something in the microwave to heat and you heard a pop and then zip-o.

The water on the stove has nothing to do with the situation, the fan you turn on is not part of the microwave, so it has nothing to do with the microwave.

The pop you heard and then the humming suggests the magnetron failed. You said you found a blow fuse and replaced it and still nothing, right? The magnetron is the most likely culprit...I would think it is safe to say that the magnetron shorted and drew enough current to blow the fuse.

Replace the magnetron and if that doesn't work, let me know here. Good Luck!

Sep 14, 2009 | Sharp R-1480 Microwave Oven

1 Answer

Heard a loud glass breaking noise, now micro-wave will not heat anything. Turntable works, everything looks fine but no heating. Model#R-1505LK


Does it seems to run louder?

I would suspect a shorted high voltage rectifier diode.

We have the full service manual and have uploaded it to our site here.

Please feel free to contact me directly if you need more help.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

May 19, 2008 | Sharp Microwave Ovens

1 Answer

Will not heat


The loud pop was almost certainly the high voltage diode going bad. To find parts, I suggest you call the number on your owner's manual or check with the store where you bought it. Sunbeam may not make this part available, so be prepared. Maybe they have authorized servicers in your area. Ask them about that. Good luck.

Sep 21, 2007 | Sunbeam SMW777 Microwave Oven

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