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

  • LMHM2237ST

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 Beautiful microwave I love the features this has and the look is beautiful and sleek.
Date published: 2016-04-11
Rated 5 out of 5 by from over the Range The way this over the Range works is like a new toy to a kid at Christmas time. Just love it.
Date published: 2016-04-02
Rated 5 out of 5 by from Simple & easy and works as expected As my title states; it's simple to use, easy at every turn, and looks very nice in the kitchen. A+
Date published: 2016-03-20
Rated 1 out of 5 by from Don't buy! Bought this microwave less than two years ago and it's already broken! Had to replace completely.
Date published: 2016-03-15
Rated 5 out of 5 by from Sharp microwave! I replaced all the appliances and selected this as a compliment to the set. It vents out the top away from the cabinets so no grease above and a clean look in front. The fan slides out to capture more fume area below. Great microwave!
Date published: 2016-02-19
Rated 2 out of 5 by from Own It But Not Happy! I was told by salesman that this was one touch. Every microwave I have ever owned you touch 3 and get three minutes. Not this one. Turntable stops and starts 6-7 times every revolution. Coffee spills out of the cup. Hard to see in the microwave when food is cooking. Display numbers to small. Extend a vent is not level. There is a larger gap on the right than the left
Date published: 2016-01-18
Rated 5 out of 5 by from like exhaust fan tray we have all LG appliances like them all our first microwave, love style and features
Date published: 2015-12-22
Rated 5 out of 5 by from It does everything Works perfect and it does everything l need, and saves energy. Best microwave.
Date published: 2015-11-18
  • 2016-05-25T11:29CST
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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.

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

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: 2016-03-13

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: 2016-01-27

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: 2016-01-27

Can the front vent be covered by the cabinet?

Do i need the front upper vent exposed even though I'm venting the unit up thought the cabinet?. My cabinet depth is 16"
Asked by: RAL72
sure - but do you want all that moisture going into your cabinet wood - will talk to warp/buckle
Answered by: mikein46
Date published: 2015-08-19

compare LHM2235ST and LMHM2237st

what are the differences, if any, between these 2 models? Consumer Reports reviewed LHM2235ST and it is the only LG they recommend. Is there a significant difference in the features and function, especially with venting and cooking efficiency? We are planning to buy several LG products and were hoping that we can also include an over the range microwave so we can have a coherence of appliances. Please respond soon. Also please consider making 2 drawer dishwashers.
Asked by: docfrugal
In comparing the listed specifications and information available for both the LG 2.2. cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237ST and the LMHM2235ST, these units are the same. It may be that they were released at different times with the LHMH2237ST being the more recent release...^IFV
Answered by: LGJoel
Date published: 2015-07-15

Night Light

Just purchased the LMH22237 and am trying to figure out how to program the night light. I don't see any reference in the Owner's manual.
Asked by: JerryT
Congratulations on your new purchase. The instructions for how to turn the night light on on the LG 2.2. cu.ft. Over-the-Range Microwave Oven, Model # LMHM2237ST can be found on page 11 of your owner's manual under the heading "LIGHT HI/LOW/OFF" The button on the right of the control panel controls the cooktop light (or night light). Touch that button once to turn the light on and "Light" will flash in display, then stay on. Page 27 gives you instructions on how to change the light should you need to replace it...^IFV
Answered by: LGJoel
Date published: 2016-01-31
  • 2016-05-25T12:24CST
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