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Frigidair prof series model plmv169dca, made loud pop and now does not heat. turns on and buttoms function, does not heat. makes a lower pitch hum when on now.

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Posted on Jan 02, 2017

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SOURCE: I have Frigidaire microwave (PLMV169DCA).

You will need to replace the magnetron.
Check this website for more info on the magnetron.

Posted on May 16, 2008

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heatman101
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SOURCE: My 3 year old frigidaire microwave made a loud pop

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 Aug 13, 2011

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1 Answer

Frigidaire prof. series microwave PLMBZ209GCA not working. Display comes on. No sound (fan). Dont know if microwaving function is working properly or not. Any suggestions?


Two things could have happen to your machine.
One the magnetron is dead and needs replacement.
Second the high tension power which supplies power to the magnetron could have been screwed up and need to be replaced or repaired.
The fact that the fan is not running I suspect it may be a power board issue.

Apr 17, 2014 | Frigidaire PLMV169DC Microwave Oven

1 Answer

My 3 year old frigidaire microwave made a loud pop and stopped heating. Everything else works. It also now makes a loud humming sound while running.


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

Microwave Oven Basic Troubleshooting Tips

heatman101 ][
][
\=-0-]

Apr 02, 2011 | Frigidaire GLMV169D Microwave Oven

1 Answer

Microwave oven makes a load humming noise & it made a loud pop noise


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Dec 27, 2010 | Frigidaire PLMV169DC Microwave Oven

1 Answer

Loud noise and not heating up


if its making a loud humming noise you need to remove the outer and carefully discharge the high-voltage capacitor in the magnetron circuitry(caps are usually oval in shape and 3 to 5 inches long) after this disconnect one terminal of the cap and check it for being open,then do the same on the high-voltage diode and check this for front to back resistance high in one direction and lower with the meters leads reversed on the diode,the humming is coming from the transformer not being loaded by the cap and diode to double the voltage required by the magnetron tube of -2,000 volts D.C.

Apr 26, 2010 | Emerson MW8102SS 1100 Watts Microwave Oven

1 Answer

Microwave not heating


In all likelihood the mangnetron has failed, or perhaps even the Power Supply. You need to have it serviced by a reputable service centre/man. Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Feb 08, 2010 | Whirlpool GH8155XM Microwave Oven

2 Answers

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

My Frigidaire over the stove microwave not heating food


Hi,It is most likely the magnetron and diode that has to be replaced. This job should be done by a tech, High voltage. Magnetron's normally have a five year warranty, check your owners manual.

Mar 20, 2009 | Frigidaire FMT148GP Microwave Oven

2 Answers

Microwave made a loud pop,won't heat,sounds like it's only on half power, makes a low intermittent hum


This is almost certainly a blown high voltage diode.

Please reply back with your brand and model number so we can help you.

May 31, 2008 | Microwave Ovens

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