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Key Features

  • Extenda™ Vent
  • QuietPower™
  • Warming Lamp
  • Sensor Cook

available colors:

Stainless Steel Discontinued

What People Are Saying

Rated 5 out of 5 by from Exceptional over-the-range microwave features! I bought the LSMH207ST LG Studio microwave 7 months ago. The microwave and super range hood fan are an excellent pairing. This over-the-range microwave has an exceptional range hood which extends over the front burners of the range at a touch of a finger, This powerful (turbo) range fan both extends and retracts at the touch of a finger solving the problem of steam from pots on the front range burners traveling up the front of the microwave. The design of this unit is truly genius! The microwave itself is of excellent quality with select buttons for many functions from microwave cooking, defrosting, melting, timers, popcorn, and many more. It even has a warming lap to keep for warm. This microwave and range fan has it all.
Date published: 2016-10-13
Rated 4 out of 5 by from This product is as i expected There could be a setting for fried foods such as reheating chicken or fish, the buzzer is too low and should be shut off by the operator. The oven light is very dim. I did want something different from the normal styling on most microwave ovens, the controls on the bottom of the door gives my kitchen an up to date look, overall i am satisfied with this purchase.
Date published: 2015-04-01
Rated 5 out of 5 by from great microwave This microwave has all of the features that I was looking for in a microwave. Foods cook evenly and quickly. The specialty buttons are very helpful (melting butter is so simple). Previous microwaves caused foods to spill over and make a mess inside the unit. This has not happened with this appliance. The sensors work great. No more burned popcorn with the popcorn button!
Date published: 2015-02-18
Rated 4 out of 5 by from Very good but could use some little improvements. We bought this microwave because we needed a new over-the-range microwave and were also adding an outside vent. This model had almost all the features we wanted and the Extenda Vent looked like it would allow it to work more effectively. That proved to be true; this unit really purges the air and keeps the kitchen free of smoke and odors. Don't discount this unit if it doesn't immediately look to work like your old one. While it took a bit of time reading the manual and learning the controls, this microwave does everything we want it to. Pluses - A timer on the vent fan allows me to have it run for another 1, 3 or 5 minutes after I leave the kitchen and then shut it self off. - The warming feature is nice. It won't heat cold food but it does keep things warm until ready to be served. It also allows you to heat up plates. - The exhaust fan really pulls the air out of the kitchen. - The kitchen timer operates independently from the cooking timer. - the Defrost setting works well. Minuses - The beep that comes at the end of the timer or at the end of the cooking time is too soft. It's OK if you are in the kitchen but not if you are 1 or two rooms away. (Designers, make the volume of the beep a customer setting.) - When the kitchen timer ends it beeps a few times and then stops. I think this alarm should sound longer and really should require you to hit a button to silence the alarm. It's too easy to miss in a busy kitchen with kids running around or people talking. - The turntable is okay but our 10 year old GE provided a more solid feel when you put a heavy casserole on it. - The automatic reheat works okay but it leaves the food not quite as hot as I like it. If heating a plate of leftovers I give it another 30 seconds via the EZ-ON button. - I do miss the delayed start my old microwave had. I could set something to heat at a specific time and then go about tending to other dishes.
Date published: 2015-01-10
Rated 4 out of 5 by from Most features are good and helpful. The unit is quieter than many I have seen and used. Many features, such as time of day and cooking buttons, are quite simple to use. However, it is deficient in one very important way: One can not run the unit for a specified length of time by pressing just one button. My previous unit would run for I to 6 minutes by pushing just one key from number I to 6. This unit does have a key (EZ on) but it goes only for 30 seconds and one can push it up-to 4 times to run it for 2 minutes but no more. One can also add to or subtract 10 seconds from the cooking time but only if the oven is already running. Cleaning and keeping the shine is a little bit more demanding because of the metal exterior.
Date published: 2014-05-15
Rated 4 out of 5 by from Second one was fine The first one we received after my husband and son-in-law spending 5 hours to install it, when we took off the protective blue tape the finish came off on the tape. I did not know stainless steal would come off on tape... The second on was fine and I do like the microwave. By the way Home Depot did the second install. They where great. LG not so helpful, or sorry. It was another week before I got the second microwave.
Date published: 2014-02-26
Rated 5 out of 5 by from Great Microwave The LG LSMH207ST is really a great microwave. Our only problem was it was defective when we received it. We had already installed it before we realized the display panel didn't work. So it took about a month before we got that resolved, but once we did, we love it! I love the look of it and the vent that slides out. It is also very quiet. Our old microwave did a terrible job of defrosting meat, but this one does a terrific job of defrosting. Our old one would start to cook the meat when defrosting - not good. But this one defrosts perfectly! The con, as another reviewer stated, is the interior light. I can't even see inside the microwave when it's cooking. I might try swapping out the light bulb like the other reviewer did.
Date published: 2014-02-25
Rated 5 out of 5 by from Love it! Love it. It is fast, quiet, and does everything I need. Very happy with my choice.
Date published: 2013-12-29
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

LSMH207ST micro, 4 yrs old. While cooking, opened door. Close door. Hit start. Heard click but no heating/turntable turning; but timer counts down and light on. Disconnect power - no fix. What's damaged? Repair costs? manual/web weak w/ troubleshooting.

Asked by: mogulmaster
We regret the trouble you have experienced with this microwave oven. Typically, if there is operation, but no heat, then the problem lies with the magnetron heating element, or another related component. The device will likely require service. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at
Answered by: NeilE
Date published: 2016-02-23

Where can i buy 24inch width over the range microwave??please help i started the project got the stove 24 got cabinets 24 and now i cant find the microwave please help even if you know a place for refurbished ones.thanks

Asked by: zoran
Regrettably, LG does not make any over the range microwaves that have a 24" width. You may want to check retailers for refurbished units, but the refurbished units would be current units that have been refurbished...^IFV
Answered by: LGJoel
Date published: 2015-09-01

Is there a 36" Trim Kit for the 30" LSMH207ST

Older opening that measures 36 inches, but no one still makes a 36 inch wide OTR Microwave/Hood combo. Need a trim kit for the sides and bottom in stainless steel.
Asked by: DRJohnson
I apologize, but no; this microwave oven has not been designed with a trim kit for wider installation openings.
Answered by: NeilE
Date published: 2015-06-22

Cleaning. Microwave lsmh207st

Hello, I have microwave lg lsmh207st I have used different stainless steel cleaning products and they leave strikes and spots...Yes I have used soap and water too and get the same results...Could your company recommend a cleaning product to help me keep my microwave spot and strike free...Also is the metal on the front of the microwave another type of brushed metal and not stainless steel because magnet sticks to the metal...Please email your company recommendations to me....Thanks, Roseann
Asked by: Tester1
We appreciate your interest in this LG microwave oven. Stainless Steel finishes can be cleaned with warm water and a mild detergent. When cleaning Stainless Steel, it is important that all detergent be rinsed off and the unit is wiped dry. Also, it is important to wipe in the direction of the grain of the metal. If a Stainless Steel Cleaner is preferred, it is important to follow the cleaner’s directions. These instructions are provided with the cleaner, and vary by cleaner. We have tested and recommend the use of the following Stainless Steel Cleaners: Simple Green Stainless Steel Cleaner; Ceramabryte Stainless Steel Appliance Cleaner; Weiman Stainless Steel Cleaner and Polish; Magic American Products: Stainless Steel Magic (Aerosol Spray); Ceramabryte Stainless Steel Polish and Conditioner; KitchenAid Stainless Steel Cleaner. The metal being used is actually Stainless Steel. Your magnets are not so much sticking to the surface, as they are being attracted to the metal door components beneath the Stainless Steel finish.
Answered by: NeilE
Date published: 2015-10-19

Does LSMH207ST vent to the outside?

If it vents outside, what is the minimum duct size? can it vent throught the back?
Asked by: Stepdov
Yes. The LSMH207ST is shipped set up for in room recirculation, but by turning the blower fans you can direct the exhaust to either out the back of the the LSMH207ST(wall vent) or out the top (roof vent).
Answered by: TheBeachBum
Date published: 2014-03-01

can I download a copy of the manual for LMHM2017BT

I would like to see the manual
Asked by: Kendall
yes you can on lg's website
Answered by: wayne1952t
Date published: 2013-11-15

how many amps does mod. LSMH207ST draw? what gauge wire is needed to power it?

we want to purchase this model
Asked by: ghmiller
i put mine on a dedicated 20 amp, 15 would have probably sufficed
Answered by: wayne1952t
Date published: 2013-11-15

What do I do wen none of the buttons work but just the vent button.

Asked by: Indio
We regret the trouble you have experienced with this product. It is recommended to unplug the unit, and allow it to sit for about 45 seconds, in order to reset the controls. If this does not resolve the matter, then this device may require service. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at
Answered by: NeilE
Date published: 2013-10-22
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