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Same thing. Relatively new microwave LG LMVM2055ST no power despite power at the outlet receptacle. If it's a fuse blown where is it? how do I get to it and replace it, and where do I buy it? 510-385-0417

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6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9085 Answers

SOURCE: LG Microwave LMVM2055ST Just stopped working!

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

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

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.

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.

To order Goldstar / L.G. parts, visit Vance Baldwin Electronics. You'll probably have to call them.

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

Posted on Dec 13, 2008

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  • 1 Answer

SOURCE: LG Microwave LMVM2055ST Just stopped working!

It has probably had an overhesat problem and the repair is quite simple. First you must remove the cover. This will require the removal of alot of scres on top, bottom and rear of machine. Once done, looking down at the top of the microwave all the way to the left about half way from the front to the rear you will see a round senso with two black wires going to it. This issimilar to a fuse and when you remove it, you can test it with a continuity testor. Electric should flow through it with no resitance. If it does not, it must nbe replaced. It's about ten bucks.

Posted on Nov 20, 2009

MicrowaveSvc
  • 9085 Answers

SOURCE: microwave does not start. receptacle is live. is

If you can program the time but it will not start cooking when you press the "Start" pad, you probably have a bad door switch or door switch mount.

If the oven has no display and will not respond, it is "dead" ands it may have a blown fuse or a blown magnetron thermal cutout (TCO) or thermostat or a blown oven cavity TCO or thermostat.

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

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

dee77f7.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Accessing some components (especially an oven cavity TCO / thermostat) for testing and possible replacement will require you to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

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

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

Posted on Aug 23, 2010

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1 Answer

Suddenly microwave stopped working


(would really like more info- digital number dead as well?)

(assuming completely dead) Could be a couple of things:
- blown fuses (inside, relatively easy to replace, std size avail at Raioshack) <-- most likely
- cut/loose power cord connection inside.
- (unlikely but worse case scenario) Door was closed crooked- one tong hit one door switch before the other- causing a short circuit internally that "self destructs" the microwave to prevent it ever operating with an open (or even crookedly ajar) door, irradiating any users. Typically it just blows the fuses, but if fuses blow immediately upon replacing and turning power on, then possibly one of the switches fused or melted internally, and needs to be replaced.

Jan 28, 2014 | Whirlpool MT4155SP Microwave Oven

1 Answer

My old GE Spacemaker II microwave (JEM21K001) died. I was using it, heard a little pop, and it lost all power. Is this something simple to fix like replacing a fuse or is it bulk trash at this point?


HELLO.

take on these steps to solve the problem.

Check if there is electric power on wall outlet.

If the microwave plug has fuse,check if it has not burnt.if these are okay there is need to take the last step.

things needed
1.Screwdriver
2.Ohmmeter
3.New fuse

1. Unplug the microwave from the electrical outlet to prevent electrocution. Place the microwave in a well-lit area to be able to locate the fuse.

2. Use a screwdriver to remove the outer cabinet of the microwave, and follow the power cord to the fuse. The fuse is located 2 to 3 inches within the microwave and is attached to the power board.

3. Observe the fuse to determine if it is blown. Blown glass fuses will produce burn marks on nearby surfaces, or the internal fuse wire will be black and melted, while ceramic fuses show no outward appearance of being blown.

4. Determine if a ceramic fuse is blown by testing it with an ohmmeter. If the ohmmeter reads zero ohms, your fuse is not blown. Other readings on the ohmmeter show that your fuse is blown.
5. Replace the blown fuse by popping it out of its holder, and snapping a new fuse in its place. Tighten the fuse clips by squeezing them together with your fingers.

6. Replace the outer cabinet of the microwave, and plug the microwave back into the electrical outlet. Test the microwave to see if it's working properly.

Thanks.

Sep 18, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Power went off after I pressed the start button. Have power at outlet ok.


The main fuse in the microwave oven has blown, this is usually caused by a defective door switch.

Apr 01, 2011 | LG LMV1645 Microwave Oven

1 Answer

LG LMVM2055ST Microwave. went completely dead, completely


I replaced outer door with key panel on my LG MICRO MODEL LMVM2055ST which solved my problem but when I went to put the handle back on it did not fit. The tophole in new panel for the handle is round and the old one is rectangle. LG says I have right part can not help me.A new handle comes rectangle shape. What now?

Mar 15, 2010 | LG LMVM1935 Convection/Microwave Oven

1 Answer

Our Emerson microwave died and I bought a new one. Plugged it into the same socket and it immediately shorted out and died. After the new microwave died I plugged a blender into the same receptacle and it...


I believe you have a bad circuit breaker or fuse. If you have a delay fuse contrilling this circuit, that would explain the spotty availability of power to the outlet. Also, a faulty circuit breaker can operate in an irregular way, as you describe.
A microwave oven requires a lot of power, relatively speaking. If your microwave is a 1200 watt model, for example it draws 12 amps of power, which could well be almost all of the power available at that outlet, providing that other appliances were not also drawing power from that circuit at the same time.
I can assist you further, but if this information is all you need to proceed that is fine too. Get back if you need more assistance.

Jul 02, 2009 | Microwave Ovens

1 Answer

Display scrambled on my model # LMVM2055ST


HI. this LCD is attached to the PWB assembly board. Unfortunately, this lcd is not sold separately and, you will need to replace the whole PWB assembly in order to fix this issue.This is actually a pwb(pcb) assembly failure.

CLICK HERE TO ORDER YOUR NEW PWB ASSEMBLY(LCD)

Jun 04, 2009 | LG Microwave Ovens

4 Answers

Burning wire smell


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.

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

Nov 20, 2008 | LG Microwave

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