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Anonymous Posted on Sep 11, 2014

I have a LG Microwave Oven Range Model#LMV1640DB I understand why the auto feature for the fan was installed, but my model now keeps turning on and running. It runs for a minute or so, shuts o

MODEL# LMV1640DB What do I replace, or how can I override this feature?

1 Answer

Siyabonga Mzimela

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  • Expert 173 Answers
  • Posted on Sep 18, 2014
Siyabonga Mzimela
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Pc board mulfunctioning its need atechnician

5 Related Answers

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Jun 15, 2007

SOURCE: LG microwave oven

It's usually a bad door switch or a broken door switch mount. Once in a while it's due to a board problem. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

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MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Nov 22, 2007

SOURCE: Door outer plastic plate slide down an inch from the top

You would probably need a service manual, for which you can contact LG at 1-800-243-0000 or http://us.lgservice.com

Or locate a local servicer:
http://us.lgservice.com/gcsc/b2c/hpi/main

Normally you have to separate the door panels (as shown in the attached photo) and then you'll see the screws you need to remove.
808ace0.jpg

Anonymous

  • 132 Answers
  • Posted on Mar 30, 2009

SOURCE: Microwave clock and duration won't set

Good Morning,
Unplug the oven and wait 3 minutes then plugit back in and check to see that it operates normally. Do not run the oven empty - place a cup of water in it. Let me know if this helps and thank you for using FixYa!

ginko

Ginko

  • 19396 Answers
  • Posted on Apr 27, 2009

SOURCE: Microwave Does Not Heat.

Test the high voltage capacitor,the rectifier diode.or the magnetron.

If it additionally does not spin and no light, then check also the door switch.

The diode and capacitors can br tested. The capacitor must be alloweddischarge before testing, or you risk to get electrocuted, even ifpower is off. Capacitors can get discharged by shorting their twocontacts.
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. (here in UK).

Anonymous

  • 109 Answers
  • Posted on Jun 16, 2009

SOURCE: LG Microwave MH-685HD Owner's Manual

Try this website: http://www.service-manual-owner.com/lg.html You may have to email the person to get the manual?

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Samsung microwave oven model #ME21K7010DS/AA

Judging from reviews of this model on Samsung's website, this is a common problem. Does it happen during or after using the cooktop or range below the microwave oven? In particular, is it most common when using the burner directly under the microwave oven control panel?

If the issues are correlated to heat or humidity from cooking on the range top, I would suspect problems with moisture in the keypad circuitry. I would consider cleaning the controller board key panel connector area with 90%+ isopropyl alcohol (this is an internal service on a circuit board that is most likely susceptible to damage by static electricity, so it should be done by someone who knows how to service electronics). This should remove contaminants that could cause current leakage between keypad connections (spurious keypad entries) in humid conditions. Let the board dry thoroughly before reconnecting.

It's also possible that moisture is getting into the keypad assembly. This would be a design/manufacturing flaw. I would guess the oven is out of warranty, so the fix would be to put the keypad in a dessicator for a day or so, then seal the edges with RTV Blue or a similar caulk that does not release acetic acid (vinegar) during the curing process. (Acetic acid even in vapor form may corrode the silver contact material in the keypad.) Do not seal the connector, just the edges of the flex ribbon layers where moisture can get into the key membranes.

In the meantime, always use the microwave oven fan when cooking on the range. This will help to keep the controller cool and dry. (Samsung's troubleshooting guide says the fan will turn on automatically if the microwave oven gets too warm from cooking underneath it.)
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I have a GE Microwave oven model JVM1790SK01. The nite light wont turn off, I pulled the plug, reset all the features but the nite light is still on, how do I fix that?

MICROWAVE PROGRAMMABLE AUTO NITE LIGHT Some over-the-range microwaves had a programmable Auto Nite Light feature, which will turn the surface lights on low on at a specific time. The Auto Nite Light feature can be set to turn on and off at any time desired.
Follow the directions below for set-up:
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To erase the settings and turn off the automatic feature:
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How do you turn the turntable on a frigidare microwave model fgmv155ctf on and off


Image Disclaimer
AUTHORIZED DEALER Frigidaire Gallery Series
FGMV155CTF
30 Inch Over the Range Microwave Convection Option Sensor Cooking SpaceWise® Rack
4.4 Average rating of
73 reviews
color: smudge proof stainless steel
Smudge Proof Black Stainless Steel FGMV155CTD
$569.00
Smudge Proof Stainless Steel FGMV155CTF
$519.00
product highlights
Optional Built-In Trim Kit Convection Sensor Cook quick specs
Dimensions
Width: 29 7/8 Inch
Depth: 15 7/16 Inch
Height: 16 13/32 Inch
Features
Capacity: 1.5 Cu. Ft.
Cooking Watts: 900
View more Frigidaire 4 Piece Kitchen Appliances Package
Get the bundle for just $3,44800View the Bundle Recommended Accessories Available Colors/Finishes Stainless Steel (FGMV155CTF) Black Stainless (FGMV155CTD)
Frigidaire GALLERYâ„¢ 1.5 Cu. Ft. 900W Over-the-Range Convection Microwave

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Model No: FGMV155CTF

Features:
  • 170/300 CFM 2-Speed Exhaust Fan
  • Convection Option & Sensor Cooking
  • Express-Selectâ„¢ Controls
  • SpaceWiseâ„¢ Convection Rack
  • Effortless Cleanâ„¢ Interior
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My microwave oven model 721.85033111 vent fan stays on

You probably have a bad fan thermostat. This thermostat is supposed to turn on the vent fan if the microwave oven gets too hot (caused by cooking too much or having too many burners turned on on the range beneath the microwave oven). It should shut off in about 15 minutes after your turn off the range burners. But if it comes on for no reason, or won't turn off, then You probably have a bad fan thermostat.

If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

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I have a Goldstar mv1610ww that is currently set up for external/ducted venting. How do I switch it to ductless/recirculated venting? What additional parts do I need? It currently has the perforated v

That information is in your installation manual that came with the oven.


If for some reason you don't still have that, then you can order it or see a video at LG's site.


The LG product support page for your model is here.


If you'll scroll down to the middle video, they show you how to install it.


That will help you when you uninstall the oven so you can swap the vent fan assembly around.


I would bet you'd also need to order a charcoal filter.


The service manuals is here, but it does not contain part numbers.


You can get LG part numbers and order parts from Encompass here or you can call them toll-free at 866-779-5835.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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LMVM1935SB - Over the Range LG - fan keeps coming on, beeping

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
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I have an LG LMVH1750ST microwave convection oven. When I activate the fan for cooking purposes and then try to turn off, it does not respond. I have to pull electrical plug and reprogram for one minute....

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"If the temperature from the range or cooktop below the oven gets too hot, the vent fan in the vent hood will automatically turn on at the 4-Speed setting to protect the oven. When this occurs, the VENT ON/OFF pad will not turn the fan off."

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Touch the Vent ON/OFF pad, then touch the "5-SPEED VENT" pad until "level 4" appears in the display, then touch "AUTO TIME SET" the desired number of times.

We're happy to help and we appreciate your thoughtful rating of our answer.
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Door outer plastic plate slide down an inch from the top

You would probably need a service manual, for which you can contact LG at 1-800-243-0000 or http://us.lgservice.com

Or locate a local servicer:
http://us.lgservice.com/gcsc/b2c/hpi/main

Normally you have to separate the door panels (as shown in the attached photo) and then you'll see the screws you need to remove.
808ace0.jpg
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