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2.2. cu.ft. Over-the-Range Microwave Oven

  • LMHM2237ST

  • Stainless Steel

Key Features

  • ExtendaVent™ 2.0
  • EasyClean®
  • 2.2 Cu.ft Oven Capacity
  • Sleek Design
Catch The Smoke

Catch The Smoke

Reduce smoke and lingering cooking smells with LG’s enhanced ExtendaVent™ 2.0. Where most over-the-range microwaves only cover the rear of the cooktop, ExtendaVent™ 2.0 provides powerful ventilation over virtually the entire cooktop, back to front. That’s what we call clearing the air.



With the new EasyClean® interior, you can have quick and high performance cleaning inside and out without using chemicals.

Largest Capacity*

Largest Capacity*

With largest capacity at 2.2. cu.ft., there's always plenty of room to heat large items.

*Based on manufacturers’ published specifications of over-the-range microwaves as of December, 2013.

Touchpad and Display Features

Touchpad and Display Features

Sleek Design

Sleek Design

With SmoothTouch™ glass controls located at the bottom of the glass door, this microwave delivers on both style and ease of use.

QuietPower™ Ventilation System

QuietPower™ Ventilation System

With an Over-the-Range Microwave Oven, strong ventilation is key. That’s why LG has created the QuietPower vent, which does the job quietly, without interrupting your life.

Oven Capacity 2.2 cu. ft.
Watts 1,000
Exterior Design WideView™ Traditional
Control Type Digital
Display SmoothTouch™ Glass Controls White, VFD Scrolling, 2 Line
Sensor Cook Options 8
Power Levels 10
Defrost Auto, Time and Rapid Defrost
Reheat Sensor Reheat
Popcorn Key Yes
EZ-On Yes
More/Less Yes
Melt/Soften Yes
Custom Set Yes
EasyClean® Yes
Energy Savings Key Yes
Bi-Level Cooking Rack Yes
Turntable Type DDS
Turntable Diameter 14.2"
Turntable On/Off Yes
Clock Yes
Kitchen Timer Yes
Completion Beeper Yes
Lighting LED
Child Lock Yes
Filtration Charcoal Filter
Vent Grill Type Hidden
Vent Air Flow (CFM) 400
Power Levels 4 (Hi/Mid/Low/Off)
Available Colors Stainless Steel (ST)
Interior Color Gray
Interior (WxHxD) 22" x 11 5/8" x 14 5/8"
Exterior (WxHxD) 29 7/8" x 17 15/16" x 15 7/8"
Shipping Qty. 288 sets / 40ft.
Shipping (WxHxD) 33 1/2" x 20 3/4" x 20 1/2"
Net Weight (lbs) 73.5 lbs
Shipping Weight (lbs) 78 lbs
Limited Warranty 1 Year Parts and Labor (In Home Service) 10 Years Limited on Magnetron (In Home Service)
UPC 048231 318983

What People Are Saying

Rated 5 out of 5 by from Great features Love the black stainless line. Pull out fan is a favorite feature. Has great functionality with plenty of cooking options, easy to use..
Date published: 2016-07-18
Rated 4 out of 5 by from Very good over the range microwave I bought this as part of a set of Black Stainless LG appliances. It's a solid performer, nothing overtly fancy about it (except its design), but it gets all the basics right.
Date published: 2016-07-18
Rated 3 out of 5 by from Love the pop out exhaust fan Just purchased this item as a package deal. Having the exhaust fan pop out to prevent it from steaming up the front of the microwave is so nice.
Date published: 2016-07-11
Rated 5 out of 5 by from Microwave Wonder I love this microwave with the pullout turbo fan. Too cool, really pulls the air from the stove top. Easy to clean and really looks sharp.
Date published: 2016-06-26
Rated 4 out of 5 by from Love the design BUT We bought the whole Kitchen Suite and love all the pieces, except when we were removing the packaging tape from the microwave, the tape peeled the paint from the side of the slide out hood. :(
Date published: 2016-06-20
Rated 5 out of 5 by from Great microwave We bought this microwave 3 months ago. It has worked flawlessly and heats quickly. We like the slide-out venting. We tried the "popcorn" feature, and it worked perfectly, leaving hardly any kernels. It's also a smart looking design. The defrost feature has worked very well. The lights could be brighter.
Date published: 2016-06-16
Rated 4 out of 5 by from Great microwave! I bought this unit 1 week ago , but installed today. Everything about this unit is great with the exception of one feature . It looks very classy , cooks great , but the unit has an automatic energy saver built in which causes the clock to vanish after 5 min. I know I bought a microwave but if you are going to put a clock on it , you should be able to tell what time it is at any time of day .
Date published: 2016-06-07
Rated 5 out of 5 by from Looks Great, Great Features! Bought this April 2016 and VERY PLEASED, it has the buttons in the door bottom, so easier to reach in the kitchen configuration! Defrost and reheat settings working well from what we have used.
Date published: 2016-05-27
  • 2016-07-23T09:37CST
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We're here to support you with our product.

View LMHM2237ST Product Support

Contact us for any support inquiries.


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.

Where can I purchase the mount brackets?

Asked by: RAFriloux
Parts and accessories can be obtained through our parts distributor, MCM Electronics. Their contact number, for placing orders, is 800-824-9491. You can also use their website, at The part number for this item is: 3300W0A045A.
Answered by: NeilE
Date published: 2016-06-17

What is the rear vent size 

Asked by: Nwood
LG Black Stainless Steel Series 2.2 cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237BD does not have a rear vent. It has an Auto Vent Feature which is an automatic vent fan operation that helps to dissipate heat from your cooktop. When the microwave oven senses an increase in the temperature from the cooktop below, it will automatically turn on the vent fan to create a safer environment for you. During this operation, the scrolling test display on the oven will caution you that the surface beneath is hot by scrolling "Caution Hot Surface". The vent fan cannot be manually shut off during the Auto Vent operation, it will automatically shut off once it determines that the area beneath it has reached a safe temperature...^IFV
Answered by: LGJoel
Date published: 2016-05-03

Filler cabinet is 36 inches long

Asked by: Ooh jam
Please pardon us, but it is not clear on what your inquiry is with regards to the filler cabinet being 36 inches long in relation to the LG 2.2. cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237ST. The W x H x D dimensions for the LMHM2237ST are : 29 7/8" x 17 15/16" x 15 7/8"...^IFV
Answered by: LGJoel
Date published: 2016-05-03

we bought all new LG appliances 2 weeks ago and love them! except on the microwave,  Model # LMHM2237S the owner's manual was not in the box :( the installation instructions were, thank goodness. is there anyway I can receive a book on it? thank you!

Asked by: michele1024
We appreciate your interest in this microwave. A copy of the owner's manual can be downloaded on our website at
Answered by: ShenaS
Date published: 2016-04-28

Does microwave have to be installed over range?

Asked by: DuelloNewHouse
The LG Black Stainless Steel Series 2.2 cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237BD is designed to be installed over range ovens and has an ExtendaVent™ 2.0 which provides powerful ventilation over virtually the entire cooktop of your range, back to front. IT does not have feet on it that would keep the ExtendaVent™ off the surface and the Night Light is underneath so you can turn it on for the cooktop...^IFV
Answered by: LGJoel
Date published: 2016-03-10

My front vents don't seem to be working correctly.  Is there something I can do to make it better.  Rear vents seem to work fine.  Also air blows from the sides of this microwave,  is this normal?

Asked by: jh77
We appreciate your interest in this microwave oven. It is stated that these vents are not working correctly. How would this seem to be the case? What makes the improper operation? Please contact our Customer Interactive Center at 800-243-0000 for assistance in this matter.
Answered by: NeilE
Date published: 2016-01-15

Lmhm22371st has absolutely no power.  The plug socket has power as we checked it with hairdryer.  There was no popping sound or any sound at all, it just shut down.  Is there by chance a quick fix? 

Asked by: EdwardSt
We regret the trouble you have experienced with this microwave oven. If the unit is receiving no power, and the outlet operates properly, then the unit 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: 2015-12-30

Does venting internally have suction at all? Ours can't even hold up half a tissue. No draw even though blower going like crazy. All steam from cook top & steam from inside the microwave all over cabinet. Will literally be dripping wet after cooking.

Asked by: NoLGEverAgain
We appreciate your interest in this microwave oven. How is the venting set up on this device? The venting is designed primarily to alleviate higher temperatures on the microwave oven by venting that from beneath the microwave away from its lower surface. It is likely that the venting is taking from the back burners of the cooktop and venting through the top front of the unit. Please contact our Customer Interactive Center at 800-243-0000 for additional information.
Answered by: NeilE
Date published: 2015-12-30
  • 2016-07-23T09:42CST
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