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Lg microwave model:MS-1944WS/00 not heating food what could be the problem

LG microwave one year old is not heating food through the plate is rotating and there is a noisy sound what could be the problem and how to fix it

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: Microwave does not heat

Just had the same experience with the identical model. Removed the cover (a challenge because of the security screws), revealing valuable troubleshooting directions intended for an experienced technician. However, I think the info is well within the reach of a typical DIY person, does not require any dangerous power-on conditions. However, make sure that you discharge the HV capacitor before trouble shooting. In my case, it appears that the HV diode is open, have ordered a replacement on the internet for $3.18, easy to replace. Hope it works. Good luck.

Posted on Jul 14, 2007

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tiway1
  • 100 Answers

SOURCE: Glass plate turntable won't spin any more

no microwave 1.5 yrs old has a belt - they're all motor driven

Posted on Jun 30, 2008

MicrowaveSvc
  • 9098 Answers

SOURCE: LG LMVM1935SB Microwave won't heat anymore!

With these symptoms, I would suspect you have a bad magnetron.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Some manufacturers will send you the magnetron to do it yourself. If nothing else, you can save about $75 by taking it to the shop yourself.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html (continuity can be good even though it is bad!)
http://www.gallawa.com/microtech/xformer.html

To order Goldstar / L.G. parts, visit Vance Baldwin Electronics.

For more Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or
visit here. You can get warranty info & find a local authorized servicer.

L.G. / Goldstar owner's manuals can be downloaded here.

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

Posted on Nov 25, 2008

MicrowaveSvc
  • 9098 Answers

SOURCE: Plate does not rotate freely and make noice

The turntable system consists of the motor, the coupler, the turntable support with rollers, and the tray.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

If yours is not set to be off via the control panel, and it won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

To replace either, you need to unplug power, then remove the bottom cover of the oven.

There should also 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.

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.

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 Nov 27, 2008

ginko
  • 19396 Answers

SOURCE: LG Microwave does not heat food

est the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

Thediode and capacitors can br tested. The capacitor must bealloweddischarge before testing, or you risk to get electrocuted, evenifpower is off. Capacitors can get discharged by shorting theirtwocontacts.
Before replacing the magnetron test also the control board.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.



All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

Posted on Apr 27, 2009

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2 Answers

LG Microwave has power, light and sounds like it is working, but it does not heat food. Unit is 3 years old.


Check for 110VAC at the primary of the power transformer. If not present check microswitches.

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My microwave turntable has stopped turning. Has this been an issue with other LG microwaves? My microwave is just over a year old. Please advise. Thank you. Nancy Pappas


It is only an issue with all manufacturers when the plate is turned when checking the food as it will strip the plastic teeth is the tiny gear box.
The motors are fairly inexpensive to replace.

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Here you go old chap:
http://www.repairclinic.com/LG-Microwave-Parts

Cheers

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Oven cooks but turntable will not turn, so it cooks unevenly. How do I reset the keypad so it goes back to normal factory presets, in case I entered something that stops the turntable revolving. Is there...


The manufacturer has set the rotational plate in motion at the same time the microwave tube is energized. They work together as a team. At no time should the plate be idol, unless you remove it completely, and then only the center spindle will turn by itself. It is possible for the rotational spindle in the center of the oven to break, but that is unusual unless some sort of pressure (like stopping it when it was moving) was applied. Also, it has been reported that some individuals tend to put items with too much weight or too large for the oven to manage; thus damaging the rotator. As long as the oven still provides Microwaves to cook your food, it is still OK. Years ago, there were no rotating plates and using the energy was all it took to get the job done. For even cooking, just manually stop the oven at times and turn the food to avoid over heating in one spot.

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Microwave oven coming on but not heating


I had the same problem with my Sharp OTR microwave/convection oven. I had 2 service reps out to look at it (Sears and Lowes) they both said it was the magnatron and would cost about $500.oo to repair it. I called Waverly's Appliance in Paris, TN and it turned out to be a diode. Total cost of repair was $35.00 including service call.

Jan 09, 2009 | Microwave Ovens

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Micro turns on but doesnot heat also turn on by self


Hello bbmasonjim,
If your micro turns on ( meaning everything seems to be working from the control panel) and you aren't getting microwave energy to heat food..you may have any number of damaged or defective components : Magnetron Tube, Filament Power Supply or HV Capacitor.. None of which are something the untrained person should mess with. Even unplugged, there is High Voltage potential inside the electronics compartment. If it is less than a year old, it may still be under warranty.. otherwise.. the cost to repair would probably be higher than the cost to replace..

Regards,
Rick

Dec 13, 2008 | LG LRM1250 Microwave Oven

1 Answer

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Looks this model's turntable support has a coupler shaft built-in which is supposed to go down into the turntable motor hole and make contact with the turntable shaft. Is that right in your case?

So I would wonder if the turntable support has gotten bent due to heat. That's common on some models.

When you take it out and look at it from the side, are the legs straight and perpendicular to the shaft or are they bent down?

On some models, you can heat them over a stove flame, then put them on a flat surface with a weight to old them in position while they cool.

Otherwise, you'll need a new turntable support. LG / Goldstar calls this a "rotating ring".

For Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit http://www.lgservice.com.

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

May 12, 2008 | LG LRM1250 Microwave Oven

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