Question about Frigidaire PLMV169DC Microwave Oven

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Frigidaire microwave exhaust fan won't stop running. i unplugged

It. ihit the hi/low switch. i hit auto fan and hit the hi/low switch twice & that didn't help either. the unit is about 1 year old professional series 169gcc model. it was on a table above a furnace hot air vent.

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  • Anonymous Feb 20, 2009

    Same problem - trying research.

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3 Suggested Answers

MicrowaveSvc
  • 8820 Answers

SOURCE: New Frigidaire Microwave fan and turntable run constantly, will not cook.

Since it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.

If you don't have warranty coverage for some reason:

This is usually caused by either a bad door switch, a loose door switch mount, or occasionally a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Door switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa:.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There may also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

Posted on Aug 02, 2008

  • 38 Answers

SOURCE: Frigidaire Professional series microwave won't heat

The most likely problem is the magnetron. Check your warranty in owners manual, I believe you have five year warranty on magnetron.

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: Microwave seems to run, but won't heat.

We have a similar problem! It sounds like a problem with the microswitch inside the unit that the door is suppose to engage when closed. If not engaged properly, it will not cook. We had the switch replaced last March but it has started acting up again. We can press in on the door and/or lift it slightly and it will cook. Try putting time on the counter and hit start. It the word "cook" appears then try moving the door slightly and see if the turntable starts turning. If not, then you may have a more serious problem. Good luck!

Posted on Oct 22, 2009

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Well it may be the breaker that the oven is connected to, overheating the switch and tripping it. Try replacing the breaker switch (main breaker box in the house rv) is the best thing, but you can place a small fan from say a old computer or laptop conected to a old cellphone charger, there both dc powered. Just make sure that when you fix it to the breaker switch you leave plenty of room for the switch to trip if it has to ' to avoid house fires'. I had to do this one year because the heater I plugged in was over loading my breaker and had to Jerry rig a old computer processor fan to keep it cool while heating that area of my house

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When you hit "Start" to microwave, do the inside light, cooling fan, and turntable all come on?

Any unusual noises? Is it louder or quieter than usual?

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here: http://031d26d.namesecurehost.com/mwd/mwd_ad_aug_2008_background.mp3

And what is your full model number from the tag on / in the unit?

These answers will help me judge whether it's in the high voltage section (magnetron, transformer, or diode) or the control section (door switch or control board relay or connection).

Please post a new help request with your brand and full model number from the tag and the answers to these questions so we can help you properly.

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That switch carries the current of the turntable motor, fan motor, and the high voltage section.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

It causes a spike at opening that eventually arcs and pits the contacts inside, and it can cause melting of the case.

You should check the switch mount for cracks, too.

Sometimes excessive current can make them fail too, but your fuse should blow before the switch.

We have the full service / repair manual for this model and have uploaded it to our site here to help you.

It will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.

You will need the
free Acrobat Reader to view or print it in case you don't have it already.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

We're happy to help you. Once we have all your information and offer a final solution, we'd appreciate your thoughtful rating of our answer.

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It sounds like the hood fan thermostat is flaky, or there may be a shorted relay or diode on the control panel.

But I would definitely avail myself of warranty service.

You can get your manual here: http://www.geappliances.com/service_and_support/literature/

GE Customer Service is at http://www.geappliances.com/service_and_support/contact/

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

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1 Answer

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If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

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

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1 Answer

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