Question about Frigidaire PLMV169DC Microwave Oven

1 Answer

Unit quit after using the oven i went to check the time on the readout and it was dead. i have went inside and the fuse is still good. i am lost at this point can you help

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Frigidaire Master
  • 8,820 Answers

A microwave can be dead for many reasons.

It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking TCOs or thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

The TCOs you need to be concerned usually with have black wires. You can ignore the ones with blue / violet wires in this case.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

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

There should 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.

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

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

Posted on Sep 06, 2008

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sharp Carousel Convection microwave


Are there any display lights?
If not check your house circuit breaker. Check main
Fuse inside microwave. If fuse is blown check damper diode and HV capcitor, magnatron.

Dec 28, 2014 | Microwave Ovens

1 Answer

Where is the fuse for ge spacemaker jvm1320wb-002...the unit is totally dead...nothing works


It is time to replace the microwave oven, if the fuse is open you more than likely have a more serious problem that will be costly, companies only go back a few years when it comes to supply parts

Jun 16, 2012 | GE Microwave Ovens

2 Answers

MW8115SS worked perfectly and then went dead


Blown fuse , take the outer cover off and change the fuse. Iff you don't have a fuse use a piece of tin foil until you find a replacement fuse.
Hopefully this helps you out.

Aug 18, 2009 | Emerson MW8102SS 1100 Watts Microwave Oven

1 Answer

Our microwave went dead. It's only three years old. My husband put some chicken wings in, closed the door, and everything went black. We plugged in a nightlight in the power source and it worked. Any ideas...


a few possible causes,
1, the high voltage fuse,
2, the high voltage capacitor
3, the slow blow fuse ( normally found on a small pcb inside unit)

other than that, check the door switches and maybe the x former.
good luck.

Jul 04, 2009 | Whirlpool GH4155XP Microwave Oven

1 Answer

Unit dead Unit is dead - suspect blown fuse


Usually, when your microwave oven doesn't work it all, the internal fuse (thermal fuse) is blown. This fuse protects both you and the oven. When it blows, you need to have a qualified appliance repair technician replace it.

The reason for this is that if you do not have any experience and training with microwaves, you can get a SEVERE shock, even if the oven is unplugged. THAT being said, if you still want to know where the fuse is get back to me. good luck.

ALSO, as you may know, a small microwave these days is under fifty bucks at walmart.

May 20, 2009 | Sharp R-1880LS 850 Watts Microwave Oven

1 Answer

Unit lost power


there is an internal ceramic (white) fuse in the microwave just under the cover on the right side

May 04, 2009 | Microwave Ovens

1 Answer

My GE advantium microwave oven 220 out of no where just quit working , no power to it all, digital light for time ect just went dead while rewarming up a bag of steam green beans. Theres wasnt a ...


A microwave can be dead for many reasons.

It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking TCOs or thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If the cavity thermostat needs to be checked or replaced you'll need to pull the oven from the wall.

You can download GE owner's manuals and installation instructions here.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

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

There should 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'd want to scan and e-mail or copy and fax the mini-manual (or at least the "schematic diagram page) to me, I'd be happy to make more precise suggestions.

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

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

Nov 29, 2008 | Microwave Ovens

1 Answer

Replacing the fuse of a MCO160UW


A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

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

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.

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

Jul 15, 2008 | Magic Chef CMV1000B Microwave Oven

Not finding what you are looking for?
Frigidaire PLMV169DC Microwave Oven Logo

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top Frigidaire Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Electrolux
Electrolux

Level 3 Expert

4342 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Frigidaire Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...