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Microwave noise filter - Microwave Ovens

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Magic chef mco165uw has no power


I didn't know they had noise filters! :)
Then you have blown a fuse. Check inside the oven chamber and look for missing powder paint or signs of arcing, if so dispose of the microwave. If the inside is good remove all the screws and remove the cover. Replace the fuse. If the magnetron was making louder noises prior then replace the magnetron. Since the fuse went the giant capacitor is likely bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

Nov 28, 2013 | Magic Chef 1.6 cu. ft. Over-the-Range...

1 Answer

WHAT IS PURPOSE OF NOISE FILTER ON VIKING VMOC205


The noise filter is to block electrical noise, not auditory noise. "Noise" in electronics means any unwanted or unintended electrical signal.

The purpose of the noise filter is to help prevent any electrical noise generated in the wiring of the microwave from getting into your house wiring, which could cause interference with or disruption of other devices.

If your microwave is making auditory noise, then it may be a loose cover or panel, a rubber bumper fell off the high voltage transformer, or one of the components is failing.

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the magnetron can be bad without that sound.

If either of those two were bad, it would not cook.

Oct 30, 2012 | Viking Microwave Ovens

1 Answer

Whirlpool oven


Hi, there are three issues that will cause a no heat situation in a microwave. these issue are a failed Magnetron, busted cut-off fuse and, failed diode.

I recommend checking all these area that are located inside the microwave for faults.

The most common issue will be a failed Magnetron.

The diode and, fuse will be located on the noise filter assembly.

Jun 22, 2009 | Whirlpool GH4155XP Microwave Oven

1 Answer

Sharp over the range microwave, no heat when turned on an a loud humming noise


HI, there are two issues here. the Magnetron tube and the noise filter has failed.

Just to make sure of the Magnetron failure, expose the device and, check the Magnetron temp fuse located near the device. this fuse will show no continuity when tested if faulty. if it testes out ok, replace the magnetron.

Jun 19, 2009 | Sharp Microwave Ovens

1 Answer

Ge spacemaker xl 1800 - no heat


HI, the loud popping noise was the Magnetron tube. this is the main heating device. the noise filter is also damaged and, should be replaced as well.

In conclusion, replacing the Magnetron tube and noise filter will fix this unit.

Jun 16, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

NE1856 Microwave


error 81 message is usually a fault in a relay....found on the LV transformer located beneath the noise filter....(noise filter is a ciarcuit board mounted to one side, should see 2x 10a fuses on it and a small 1.25A)...underneath, a circuit board...thats the lv transformer assy.
Check the 10A fuses first....if they are ok, change the entire transfromer assy.....easy enough to do, the part number is A692M3310GP

Hope this helps

Oct 05, 2008 | Panasonic NN-2505A Microwave Oven

2 Answers

Hotpoint microwave exhaustive fan combined unit - fan not working


Do you feel air flow? That's the key.

Most microwaves have the exhaust fan assembly at the back edge, not up front immediately behind the grille / vent.

Post back if you can give us more detail or have other questions.

Oct 13, 2007 | Hotpoint RVM1635 Microwave Oven

1 Answer

GE Spacemaker XL 1800 - Noise while heating


Maybe you and the person from the post below could get together and help each other? http://www.fixya.com/ThreadView.aspx?prdid=489218&thid=130453

Mar 25, 2007 | GE JVM1660 Microwave Oven

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