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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 Large Capacity! Powerful ventilation! The fans on this over the range microwave are quiet yet very powerful!
Date published: 2016-08-18
Rated 5 out of 5 by from Great looking and top preformer We bought the microwave along with matching refrig and gas range. Could not be happier. Microwave was an easy self install, great looking and super easy to operate
Date published: 2016-08-17
Rated 5 out of 5 by from Convenient controls! We're very pleased with performance and appearance of our new microwave oven. Accurate, easy to use menus, guides and touch controls, along with easy clean surfaces make this an excellent choice in any home kitchen.
Date published: 2016-08-17
Rated 5 out of 5 by from BEST INNOVATIVE MICROWAVE EVER !!! I have owned this microwave for few months now. It has so many features that I just love. First off, the extendable exhaust hood with a super quiet fan that sucks up all the smoke and steam over the entire top of the range below it. Second, is the sensor cooking feature that makes the best baked potato ever and with no guess work on the cooking time. So many more great features that are too numerous to mention here. The appearance is so beautiful and well engineered.
Date published: 2016-08-13
Rated 5 out of 5 by from Love the slide out fan! This microwave cooks very fast and even. With other microwaves we have had it takes forever to warm up food, but this one works very well. The fan that extends is probably the best feature. It now covers the pots that are on the front of the stove!
Date published: 2016-08-04
Rated 5 out of 5 by from Looks Great, works great This microwave oven is so quiet we aren't always sure we turned it on.
Date published: 2016-07-31
Rated 5 out of 5 by from Ease of use This is the best microwave we have ever bought. The overall appearance, the ease of use and the overall performance are great!
Date published: 2016-07-28
Rated 5 out of 5 by from Impressive Features! We bought this to replace our existing microwave. We are very impressed with it; especially the lighting and the strong ventilation system. You can extend the venting capacity by pushing in the bottom front panel which then covers the entire stove surface.
Date published: 2016-07-28
  • 2016-08-24T08:36CST
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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.

My clock display vanishes after 5 minutes even when I use the CUSTOM SET button , press 2 for clock on/off then press 1 for clock on . Any suggestions??

Asked by: JKSW
The Energy Saving feature on your LG 2.2. cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237ST saves energy by turning off the display after 5 minutes of idleness if you press the Energy Saving button. Touch Energy Saving to turn the display on...^IFV
Answered by: LGJoel
Date published: 2016-08-17

I need the installation instructions  Reinstalling after remodeling kitchen LMHM2237ST 

Asked by: John999999
We appreciate your interest in this microwave oven. Unfortunately, the installation instructions are not available on our website. However, it may be possible to obtain a copy by contacting our Customer Interactive Center at 800-243-0000.
Answered by: NeilE
Date published: 2016-08-16

Where can we purchase a 36" filler kit for the LG microwave model#LMHM2237ST?

Asked by: Teamddma
We appreciate your interest in this Over-the-Range Microwave oven. This model has not been designed for compatibility with a filler kit.
Answered by: NeilE
Date published: 2016-08-10

How do you keep the clock display on permanently? It vanishes after about 5 minutes.

Asked by: Jsann
We appreciate your interest in this microwave oven. According to the information in the owner’s manual, the display will automatically turn off after 5 minutes of idleness, depending upon the model. Otherwise, press the CUSTOM SET button, press 2 for CLOCK ON/OFF, and then press 1 for the CLOCK ON selection. If this option is not available, then this will remain as default operation.
Answered by: NeilE
Date published: 2016-07-29

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
  • 2016-08-24T09:47CST
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