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LG - 1.8 Cu. Ft. Over-the-Range Microwave - Stainless steel

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Quickly prepare a meal or snack with this LG LMV1831ST 1.8 cu. ft. over-the-range microwave that features sensor cooking with 7 options to ensure thorough heating. The EasyClean interior resists stains and simplifies cleanup.

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    Stainless steel
    • Black stainless steel
    • Stainless steel

    Key Specs

    • Product Height
      16.43 inches
    • Product Width
      29.93 inches
    • Product Depth
      15.37 inches
    • Microwave Type
    • Convection
    • Turntable Diameter
      12.6 inches
    • Microwave Controls
    • Sensor Cook
    • 1000 watts
    • Color Finish
      Stainless steel
    LG - 1.8 Cu. Ft. Over-the-Range Microwave - Stainless steel - Front_Standard
    (Doors closed)


    What's Included

    • Bilevel cooking rack
    • Charcoal filter
    • LG 1.8 Cu. Ft. Over-the-Range Microwave
    • Owner's manual

    Ratings & Reviews

    Overall Customer Rating:
    92% of customers would recommend this product to a friend (314 out of 345)


    Digital controls

    Enable simple operation. An energy savings key helps conserve energy.

    Spacious 1.8 cu. ft. interior

    Accommodates a wide range of meal and snack items.

    1000W of cooking power and 10 cooking levels

    Provide the versatility needed to prepare a variety of foods.

    7 sensor-cook options

    Utilize humidity-sensing technology to ensure delicious, thoroughly heated results. The sensor-reheat feature takes the guesswork out of warming leftovers.

    One-touch settings

    Let you easily prepare your favorite dishes. Popcorn key helps you make a tasty treat with a simple touch. EZ On function enables you to add 30 seconds to the current cooking time.

    Auto, time and rapid defrost

    Allow you to quickly thaw frozen foods.

    DDS turntable

    Helps ensure even heating and can be turned off to meet your needs. Bilevel cooking rack lets you cook 2 dishes simultaneously. EasyClean interior resists stains and buildup and allows you to easily wipe away soils.

    Cooktop light

    Illuminates the surface below, so you can better see what you're cooking on the stove. Dimmer setting permits use as a night-light.

    3-speed fan

    Helps remove cooking odors from your kitchen. Hidden vent grille provides a sleek look.

    Removable charcoal filter

    Helps take grease and other impurities out of the air.

    Kitchen timer and time-of-day clock

    Make it easy to coordinate an entire meal. Completion beep alerts you when cooking is finished.

    Customer rating

    Rating 4.4 out of 5 stars with 345 reviews

    would recommend to a friend



    Most relevant reviews

    See all customer reviews
    • Rating: 3 out of 5 stars


      • Verified PurchaserVerified Purchase
      • My Best Buy® Elite Plus MemberElite Plus Member

      To be fair, I loved my old microwave and did not want to replace it, but it was white and everything else in the kitchen is now stainless steel. My biggest complaint on this model is the touchpad. It seems to be slightly off center with everything. I find myself having to re-do a lot of the inputting for simple things. If I want to cook something on 70% for 2:30 I inevitably will have to push a button twice somewhere along the process to get it to register. We have used the "auto cook" (or "sensor") settings as well as some of the pre-programmed cooking options. My old nuker was a 5 yr old Whirlpool that also had sensor and pre-programmed cooking options. The nice thing about the Whirlpool was I could hit COOK then cycle through the different pre-programmed settings via the display screen. With this LG unit I have to review the sticker inside the unit before closing the door to know what keypad combination to enter. For example, if I wanted to heat soup in the Whirlpool, I would close the door, hit COOK and the display would say "Press 1 for Pizza, 2 for Soup, etc." With the LG, I need to look at the sticker inside before I close the unit and reference "Soup = Cook + 2" The range light on this LG is not very bright compared to other models. More of a nightlight than a stove light. The unit comes with a rack, which is nice but we probably will use it twice in our lifetime. The rotating plate is nice and large. The interior seems to clean up nicely. Food heats quickly and evenly (to the extent that any microwave cooks evenly). Sensor cooking seems to be set well. I am not sure what the "Energy Saving" button does other than it turns off the display until you use the microwave again. In the end, I wouldn't "recommend" the unit because I think you can get a more "friendly" unit for the same price. At the same time I think that this unit more than meets the needs of the average individual and it prepares food adequately.

      I would recommend this to a friend

    • Rating: 3 out of 5 stars

      Noisy fan, dim lights


      The fairly noisy stove exhaust fan runs every time you run the microwave, making conversation nearby difficult. It also blows (leaks) air out the top of the unit, in spite of my outside vent configuration. My last LG (LMV1813ST) had dual under-hood lights that were bright and had a 2-level brightness (high and low). This unit has a single, dim bulb. I installed a 40w LED bulb, and that helped. The interior of this model is dark-colored and has a dim bulb. The display (clock, timer, etc,) is recessed, with slightly worse off-angle viewing. Finally, the mounting plate and all mounting holes were in different locations from my last LG, which turned a 30 minute installation into a 4 hour pain in the neck. Why did LG change all the hole locations? I used to complain about crummy GE appliances, but this might be my last LG, as it feels like a big downgrade from the last one, which lasted 7 years (not as long as it should have). I bought this one with the hopes that mounting it would be a simple job - not so.

      No, I would not recommend this to a friend

    • Rating: 1 out of 5 stars

      Worked . . Until it didn't

      • My Best Buy® MemberMember

      Got this microwave with a dual oven LG glass top range when we remodeled our kitchen. Worked for about 3-4 years. Then the inside fan would come on whenever you opened the door for the last year. Then last week it started not turning on, sporadically. Until last night, when it refused to turn on at all. The key pad works, and starts a countdown timer, but wont turn on. Tried unplugging it. Messing with the door. Everything I could think of. Nothing. Looks like I need a new one. Just wish I could be confident in replacing it with a different make/model that would be of higher quality, but don't want to have to mess with converting the existing install. humm.

      No, I would not recommend this to a friend

      • Brand response


        Thanks for sharing your feedback. We take our consumer feedback into consideration for research, design, and growth opportunities. I will be happy to pass along this information to our Design Team. Please feel free to reconnect with us directly should you have any other questions or concerns via Twitter @LGUSSupport or Facebook ^CP LG

    • Rating: 1 out of 5 stars

      loud and door issues

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      A lot of issues with this LG microwave and unfortunately, i did not get it installed within the 15 days so BB would not take it back. First, when installed and turned on for the first time, it was just plain loud. Really loud. To make matters worse, the turntable platter only turned about 1/4 of the way, stopped, started again, stopped, etc. And, the microwave heated intermittently- turns out it was the door. When you closed it and the microwave didn't work, you had to push in and up on the door and then it would work. Maybe just a bad unit but ended up with a KitchenAid.

      No, I would not recommend this to a friend

    • Rating: 5 out of 5 stars

      Nice looking design with plenty of features.

      • Verified PurchaserVerified Purchase

      This microwave oven perfectly matches our LG refrigerator and range and looks very modern. The stainless steel finish does require more cleaning than our older enamel finish microwave. We haven't tried the sensor heating settings yet but they appear very useful and easy to use. The control panel seems to require more pressure than our old one did. Amazingly, the installation was very easy because we were able to use our old Kenmore wall bracket. Took less than 30 minutes to install. The noise level is no louder than other microwave ovens I have used.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Works great!

      • Verified PurchaserVerified Purchase

      Pretty easy to install; just make sure you have an extra set of hands for the mounting. Some other reviews state this microwave is loud; I haven't noticed. The fan works great so does the undermounted light. It popped the best bag of popcorn I have ever had and very easy to wipe clean. I don't have any complaints about this unit, though I don't know if I will ever use the rack that came with it. It matches my new LG double oven perfectly. :)

      I would recommend this to a friend

    • Rating: 4 out of 5 stars

      Good Basic Microwave

      • My Best Buy® Elite MemberElite Member

      We bought this because we just wanted a basic microwave that is relatively compact for our space. We don't like appliances that protrude much from the counters/cabinets. It looks good and it functions solidly. My complaints, and the reason I docked it one star is 1) the plastic over the control panel is soft and rippled. Light reflecting off this uneven surface makes reading it from a distance difficult (I know, who needs to read their microwave controls from a distance?) and detracts from its appearance, and 2) My other complaint is that all my LG appliance displays are a cool white LED except this microwave has a green LED display.

      I would recommend this to a friend

    • Rating: 4 out of 5 stars

      Missing a simple feature

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      Works well, but I can't give this 5 stars because it is missing the automatic timing feature my old microwave had. In other words, you can't just press the 3 and expect 3 minutes of cooking. You literally have to press the cook time and then minutes, or punch in 3-0-0-start. beep beep beep beep Yeah, sounds like a first world problem, but if you're used to the auto-time and you have to stop what you're doing to go find your glasses, it is an annoyance. It's a simple feature they probably should have included, given the price. Otherwise, it looks and works great.

      No, I would not recommend this to a friend

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