To properly experience our LG.com website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE9 or greater).

The LG.com website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions.

If you’re using Internet Explorer 8 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE9 or greater).

If you’re using Internet Explorer 9 and higher, turn off your Internet Explorer browser’s “Compatibility View settings” by following steps below:

  • Right click at the top of your browser and make sure the “Menu Bar” option is selected
  • Select “Tools” from the menu bar and then select “Compatibility View settings”
  • In the pop-up menu uncheck all three boxes and click “Close”
  • Your browser window will automatically refresh and you’ll be ready to go
Skip to Contents

36 Inch, 30.5 cu.ft. Super-Capacity French 3-door Refrigerator with Door in Door

  • LFX31945ST

  • Stainless Steel
  • Discontinued Product

Key Features

  • LG Door-in-Door Design
  • Super Capacity
  • Slim SpacePlus™ Ice System
  • Smart Cooling Plus System
SPECIFICATION English
CAPACITY
Total 30.5 cu.ft.
Refrigerator 20.5 cu.ft.
Freezer 10.0 cu.ft.
FEATURES
Temperature Sensors 10
LoDecibel Operation Yes
Energy Star Yes
Temperature Controls Electronic/Digital
Water Filtration System Compact Filter LT700P
Freezer Door Type Pull Drawer
Multi-Air Flow Yes
Temperature Controls Electronic/Digital
SmartDiagnosis™ Yes
Door Alarm Yes
Linear Compressor Yes
Energy Consumption (kWh/year) 578
Display Type SmoothTouch™ Control/White LED
Child Lock Yes
Fresh Air Filter Yes
Dual Evaporator Yes
Tall Ice & Water Dispenser Yes
Linear Compressor Yes
Door-in-Door Design Yes
SmartDiagnosis Yes
Tall Ice Water Dispenser Yes
Smart Cooling Plus System Yes
Child Lock Yes
Display Type SmoothTouch™ Control/White LED
Fresh Air Filter Yes
Dual Evaporators Yes
REFRIGERATOR
No. of Shelves 4 Split (3 Fixed, 1 Folding)
Cantilevered Shelves Yes
Shelf Construction Spill Protector™ Tempered Glass
Crisper Bins 2 Humidity Crispers / 1 Bonus Drawer
Refrigerator Light Ceiling and Side LED
Slim SpacePlus™ Ice Maker Yes
Glide N’ Serve™ Drawer Yes
REFRIGERATOR DOOR
No. of Shelves/Bin 9 (2 Half, 1 Gallon, 1 Kids, 2 Small)
Door Bin Construction Clear Bins with Deco
FREEZER
Ice Bin Yes
No. of Door Bins/Construction Tilting Shelf/Plastic
Drawers 3
Freezer Light Premium LED
DuraBase™ Solid Drawer Base Yes
3-Tier Organization™ Yes
Drawer Divider Yes
Handle Smart Pull ™ Handle
MATERIALS/FINISHES/STYLE
Contour Door Yes
Available Colours Stainless Steel (ST)
Handles Matching Commercial Handles
Surface Stainless Steel
Back Flush & Metal cover over mechanical parts
Hidden Hinges Yes
DIMENSIONS/CLEARANCES/WEIGHT
Depth w/ Handles 36 1/4"
Depth w/o Door 29 1/2"
Depth (Total with Door Open) 48 1/8"
Height to Top of Case 68 3/4"
Height to Top of Door Hinge 70 1/4"
Width 35 3/4"
Width (door open 90 deg. w/o handle) 40"
Installation Clearance Sides 1/8" x Top 1" x Back 2"
Carton Dimensions (WxHxD) 38" x 73" x 39"
Depth w/o Handles 33 3/4"
Width (door open 90 deg. w/ handle) 45"
Door Edge Clearance w/Handle 4 5/8"
Door Edge Clearance w/o Handle 2 1/4"
Weight (lbs) 350/390 (Unit/Carton)
UPC CODES
LFX31945ST 048231 784511
WARRANTY
Warranty 1 Year Parts and Labour, 7 Years on the Sealed System, 10 Years on Linear Compressor™

What People Are Saying

Rated 5 out of 5 by from Love it! I bought this refrigerator 4 years ago and I love it. Very spacious with cool secret door. The only downfall is the ice maker. If you plan on using a lot of ice in one day, you better make sure your ice bin in the freezer is full. [This review was collected as part of a promotion.]
Date published: 2017-07-25
Rated 3 out of 5 by from Ice dispenser crusher rusting Up until recently, I have had no problems with my LG French Door Refrigerator. Recently noticed ice dispensing with rust in the ice cubes. After inspection of the ice dispenser, noticed the ice crusher has rusted. It appears that I will need to purchase a new dispenser bucket. I'm disappointed this component would rust. [This review was collected as part of a promotion.]
Date published: 2017-05-22
Rated 1 out of 5 by from Biggest piece of garbage I've ever owned 3 years old and we're considering replacing it due to all the repairs and problems. Ice machine sucks, energy usage is the same as other fridges, we've had 7 repairs in 3 years and it's constantly making weird noises, which are just lead-ups to another repair. Do NOT buy this refrigerator. [This review was collected as part of a promotion.]
Date published: 2017-01-09
Rated 5 out of 5 by from I thought the third door would be a bit of a nusan We love this refrigerator, the third door for milks and juice is such a bonus and for those of us that use milk in coffee gets well used. The fridge is so roomy and everything is very visible. The extra drawer in the freezer is great for smaller items or pies.
Date published: 2017-01-07
Rated 5 out of 5 by from GREAT REFRIGERATOR REFRIGERATOR WORKS WELL AND EASY TO USE. SMALL ACCESS DOOR IS A REAL BENEFIT. ICEMAKER IS SMALL IF YOU USE A LOT OF ICE [This review was collected as part of a promotion.]
Date published: 2016-12-31
Rated 5 out of 5 by from Lots of shelves Had this for a couple of years now and it's been great! I struggle keeping it organized but love all of the room [This review was collected as part of a promotion.]
Date published: 2016-12-29
Rated 2 out of 5 by from LG LFX31945ST I have to say I am very disappointed in LG - We have had a GE for over 20 years with NO repairs needed. We bought this Refrigerator 2013 and we already have to call for repairs on the ice maker. Very disappointing AND expensive! [This review was collected as part of a promotion.]
Date published: 2016-12-01
Rated 4 out of 5 by from We bought this fridge and while we love it, the one door has scratched and now we have to buy new door.
Date published: 2016-11-18
  • y_2017, m_9, d_24, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_12, tr_380
  • loc_en_CA, sid_MD00085634, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lgecanada
  • bvseo_sdk, java_sdk, bvseo-2.3.0.0
  • CLOUD, getReviews, 6ms
  • REVIEWS, PRODUCT

QUESTIONS? LET US HELP

Simply choose a support option from the icons below: