Question about LG LMVM1945 Microwave Oven

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LMVM2075SW. Works fine except for moisture inside. It gets totally dripping, beads on the walls, top, etc. Vents outside, and the vent for the stove works great, but it's like there's another fan or something that should be drawing moisture and such out of the interior that isn't working. This is something it only started doing about 8 or 10 months ago, unit was manufactured in Feb of 2008 and I got it that spring.

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There should be a separate fan to cool the magnetron. That fan blows into the cavity and should prevent moisture buildup.

Posted on May 20, 2011

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Frigidaire microwave model ffmv164lsa constant beeping, with little symbol to the top left hand side of the clock displaying with the beep.


Hopefully no one sprayed a liquid cleaner directly onto or near the keypad...

From page 23 of the owner's manual:

"Wipe the microwave oven inside and out with a soft cloth and and warm (not hot) mild detergent solution. Then rinse and wipe completely dry."

"Clean the outside surface of the microwave with soap and a clean damp cloth. Dry with a clean soft cloth. To prevent damage to the operating parts of the oven, do not let water seep into any vents or openings."

If there is moisture damage, it may dry out by itself if you leave it overnight with the door open. If not, the warranty would be voided and you'd have to arrange for out of warranty service.

If there is no moisture damage, and it failed not due to outside forces, then you should contact the manufacturer to arrange warranty service.

Oct 05, 2016 | Frigidaire Over-the-Range Microwave

1 Answer

Back panel of microwave gets hot while in use


would you not also get hot when in use . if you were heating food to be totally cooked .that is why they have a fan in them

Jun 19, 2016 | Magic Chef Microwave Ovens

1 Answer

My microwave shuts off, black no power when ever I cook tv dinners, potatoes etc. after 2.5 or 3 minutes. After 10 minutes or so, power comes back on and it displays PF. lots of steam inside after.


Hi Kerry,
"PF" is power falure if you didn't aready know this. It sounds to me like the coolig fan might be running slow or there is blocked or restricted air flow through the unit. This cooling fan is only for the HV transformer and magnetron. Sometimes you may get air flow around the door but this is incidental. The PF tells me that the power is being interrupted either at the power source (wall outlet or circuit breaker) or the magnetron TCO is cutting out. It also could be a bad magnetron running too hot. As far as the steam goes, I usually just leave the door open on my microwave for 10 or 15 minutes to let the condensation evaporate.

Jun 25, 2015 | Hotpoint RVM1435 Microwave Oven

1 Answer

How to vent exhaust outside


bea12bfe-3a65-4764-8544-5bc63391c2dc.jpg9dbdeaa6-0b81-4926-ab21-2206dc8f6420.jpg6bfcce66-f35e-4950-b5c4-5ba9eff2c34c.jpgI usually choose an outside wall if possible to vent outside. You can buy a rear vent that is superior to a dryer vent. When this isn't possible you need a rectangular duct going up through your cabinet and up through your ceiling. hopefully you have an attic or you have to switch to a 5 inch tube going sideways (above your cabinets (if there is space) to the outside wall. If it goes into an attic you have to cut through the shingles to a vent made for bathroom and or hood vents. The motor and blower assembly inside your microwave is designed to turn to be front facing, rear facing or vertical facing. Just unscrew or break out the side that you need to vent through.

Oct 21, 2013 | GE Spacemaker JVM1540 Microwave Oven

1 Answer

Emerson microwave mwg9115sl over heats then turns back on after 20 minutes


Your magnetron is overheating, which can be caused by:


  • operating oven without cover(s) in place
  • wrong magnetron installed in oven
  • an old or otherwise failing magnetron
  • cracked magnetron magnet
  • improper power line voltage (should be 110-125VAC)
  • foods low in moisture (popcorn & bacon, e.g. - add 1/2 cup of water in rear oven)
  • failed or inoperable cooling fan or hood vent exhaust fan
  • deteriorating foam weatherstripping seals in air ducts or on outside cover
  • blocked air vents (dust, animal nest debris, insufficient free air space behind & around oven, etc.)
  • clogged or greasy charcoal filter or grease filter
  • blocked duct in hood vent exhaust

The first suspects in my book are fan failure, blocked vents, or bad magnetron.

Jan 10, 2013 | Emerson Microwave Ovens

1 Answer

My Kenmore Elite electric stove top will turn on fine, but it will randomly cut off. Then none of the burners will heat up, but lights are on like all is fine. If I turn off the power for 5 minutes it...


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.

An overheating magnetron can be :
  • operating oven without cover(s) in place
  • wrong magnetron installed in oven
  • an old or otherwise failing magnetron
  • cracked magnetron magnet
  • improper power line voltage (US homes should be 110-125VAC)
  • foods low in moisture (popcorn & bacon, e.g. - add 1/2 cup of water in rear oven)
  • failed or inoperable cooling fan or hood vent exhaust fan
  • deteriorating foam weatherstripping seals in air ducts or on outside cover
  • blocked air vents (dust, animal nest debris, insufficient free air space behind & around oven, etc.)
  • clogged or greasy charcoal filter or grease filter
  • blocked duct in hood vent exhaust
I suspect a failure or the fan, clogged filter or bad magnetron.

I appreciate your thoughtful rating of my answer.

Feb 07, 2011 | Microwave Ovens

1 Answer

Can i cover my outside house vents in the winter?


you should never cover any vents, they are there for a reason, to keep you safe from fumes, damp, etc.. (If talking about vents that are outside you home). If you are talking about appliance vents then you run the risk of them breaking if you cover the vents, due to overheating

Vents that are outside the home including boiler vents etc... exhume all of the carbon dioxide that is bad for you. Vents that are there to stop damp, if blocked may cause you to have a problem with damp in the future.

Jan 14, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Change the venting from internal to external?


Hello staufferbi,
It is possible to redirect the vent to the outsied but it is not a simple task. First off, you will need to remove the micro from the wall cavity and reposition the blower so that it vents out the top and not the front, then cut a hole in the cabinet above the micro ( lined up to accept the rectangular duct ) These tasks require fairly good carpenmtry skills and may not be suitable for the novice.. In any event, if you do attempt this.. then once you have the duct vented through the cabinet from the top of the microm you will need to attach that to wall vent feedthru. This normally means converting the rectangular duct to 4inch round and using an elbow. Needless to say, it can be done but is fairly involved. I did not mention anything about getting a 4 inch hole thru the outside wall and not thru a wall stud.,. Outside walls are typically bearing walls and although your roof won't cave in if you cut a hole thru a stud, it isn't advisable. Then you have to make sure it is sealed thru the wall cavity and properly cut into your siding. As I said before..it can be done but don't think it is a little job..
Good luck
Rick

Jan 09, 2009 | Microwave Ovens

1 Answer

No Exterior vent for fumes


Hello kbender,
I am absilutely certain that the reason it vents inside is because it is more difficult to vent it outside.. ( which means it costs the builder more to do that) but to answer your question.. Yes, all spacemaker micros can be vented out the wall but you will have to remove it from where it is mounted and rotate the blower assembly so it vents out the back, place a blank off plate over the open area where it used to vent ( it may be there and needs to be repositioned when you rotate the blower) , then create a vent hole that lines up with the exit point of that micro.. and attach duct work to bring it outside ( depending on your siding , will dictate how that gets mounted externally and you may run into a problem witha stud on the outside wall ( a bearing wall) that wil need to be cut..I've installed many of these to outside vents and it is a lot of work.. so you may want to consider your options. If you hire someone, that's the easiest solution. You may also want to check to make sure your condo committee ( if you have one) will not have a problem with that.. or you may be able to get a group discount if you hire someone to do mulitple units..
Hope that helps..
Regards,
Rick

Dec 04, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Cold air from outside coming in house through vent


Sounds like your damper (flap) outside is working, and that's probably the first thing to check. Wind may be also pulling the damper open from time to time. Hopefully the pipe fitting is sealed, and the pipe is insulated anywhere it runs through any unheated portion of the house. Some amount of cold air getting in will be unavoidable. The best bet next might be to look over the two pages in the installation instructions that deal with outside venting. If you don't have the installation instructions, you can get a copy here: http://www.geappliances.com/service_and_support/literature/ Then if you don't notice any obvious problems with the installation, it may be time to contact the installer for their two cents.

Feb 05, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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