20 Most Recent LG LMVM1935 Convection/Microwave Oven - Page 3 Questions & Answers

The keypad is what needs to be replaced. The keyboard control board. Partselect.com is where you can find it, and diagrams, and more.

This may help you.http://www.associatedcontent.com/article/17121/how_to_fix_a_sparking_microwave_oven.html

hi,
this will help you out

http://kitchen.manualsonline.com/manuals/mfg/lg/lmvm1935sb.html
thank you,
vijay(vote for me)

that would be for a technician only........ electronic parts of that type are not generally self repair nor readily available

The fan will come on if you are cooking below and the area gets hot.... is this when it happens? Sometimes random beep could be a power blip... not long enough for a reset of all things electrical

That is a bad timer control board.

Enter the model number on one of two websites below to get parts and diagrams for your appliance:


Appliance Parts From PartSelect

Appliance Parts Pros

Without being able to put my meter on it. My first guess is that you have a bad board. I would say a high limit but it either works or don't work. It does not come and go. There is not a lot to a microwave. You have door switch's, Mag tub, fuse, fan, transformer, diodes, belt, high limit, pc board and a touch pad. This sounds like a pc board to me. Honestly, if it's not a fuse. Unless it's a high dollar built-in unit, they are not Worth fixing. You can buy a new one cheaper. This is why a lot of service company's don't work on them anymore.
Please rate this solution if helpful.

Same issue here. LMVM1935 about 2 months past warranty keypad stopped working. Apparently they need to add something in the manual about not boiling water on the range over which the microwave is installed (gee who would have thought that there would be steam over the cooktop and we should seal the membrane?).

The silver traces on the keypad got corroded and no longer conduct. After complaining to Sears (NO HELP) and LG (EVEN MORE INEPT) and running on 30sec button for about 6 months, I found a replacement keypad $30 w/ shipping and didn't break anything taking the door apart, thanks to the parts list link above. Thanks Rickzilla!

Life's Good, Their Keypad SUCKS, or apparently we are the only people that boil water anymore.

Found manual download through LG go to http://www.lge.com/us/support/product/support-product-profile.jsp?customerModelCode=LMVM2055ST&initialTab=documents (this is a link to download...will need adobe).

It sounds very much like a bad connection on the control circuit board.

A microwave that comes on by itself can be very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it running unattended.

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

To facilitate safety & disassembly in case you or someone you know wants to consider sending in the control panel assembly, we have the service manual to a similar model which should be close enough to do the job.

We 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.

Feel free to contact me directly (and please remind me of your full model number) for more information & help.

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

William E. Miller
[email protected]
http://www.microwavedisplay.com

For the sensor problem, I would I would suggest a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it still does not work, you may have a bad sensor or door switch.

Here is some info on checking door switches: http://www.microwavedisplay.com/doorsw.txt

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.

L.G. / Goldstar owner's manuals can be downloaded here. If you consult your manual, it amy tell when & why the sensor pad may not work.

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

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

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 won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

In some cases, cleaning them helps. Lubrication is not recommended.

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

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

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

You won't find the trays at a retail store.

You can order one from www.microwaveglasstrays.com or call them @ 1-877-894-0035 toll free

The Interlock Monitor Switch is an added
safety check on the Primary and
Secondary Interlock Switches. If the
Primary and Secondary Interlock Switches
allow the oven to operate with the door
open, the Monitor Switch will blow the
fuse.

You can get more information about adjuting the interlock switch from this link

http://136.166.4.200/contents/Microwave/LMVM1935xx/LMVM1935xx_Service_Manual.pdf

sections 7-11 thru 7-12 discuss the door interlock adjustment that will cause the 20A fuse to blow if it isn't set up right. I hope this helps you...

please bring the panel with pcb we can rectified the same.

i am live in india, kindly do any person coming from india, pl contact 9791055855.

Thanking you,

Regards.

G.K.MAHENDRAN

You can download Samsung over the range microwave installation instructions here. If that's no good, try here.

Otherwise, visit this page, click on click on the left-side arrow "Busque por Codigo del Modelo" in the big purple rectangle, enter your model number in the box, then click "Buscar". They may list an English version manual available for download.

Good luck.

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

Quite often this is due to grease or food particles stuck to the inside of the oven or stuck on or behind the waveguide cover.

The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet.

It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!

In some models it is a larger stirrer cover type made of thicker plastic in the ceiling of the oven.

The cover and the metal behind it should be cleaned with a mild, non-ammonia cleaner.

If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

If your waveguide cover is burned, it will need to be replaced. It provides important protection for the magnetron.

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

The unit will work just fine on the counter, but obviously the lights underneath won't show and the exhaust fan won't be of much use.
Otherwise, it's perfectly ok!

If you might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

It's at http://www.microwavedisplay.com/keypad_replacement.pdf

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