You can find parts and diagrams on www.SearsPartsDirect.com
by entering your full model number, and there are two models that begin with WM2277HW: searspartsdirect.com/search?q=wm2277hw
There are 2 versions of your washer model WM2277HW. The version WM2277HW00 uses control part 6871ER1003C, and the version WM2277HW01 uses control part number 6871ER1078T.
For model WM2277HW/00:
The original part has been discontinued. However, here is the remanufactured control board from Sears PartsDirect: searspartsdirect.com/product/52ipdd57je-0026-795/id-6871er1003cr
The R at the end of the part number (6871ER1003CR) indicates that it is remanufactured version of the original 6871ER1003C. Here's a picture of that part: searspartsdirect.com/product/5pa0w8lufp-0026-795/id-6871er1003c
For model M2277HW/01:
Here is the new control board: searspartsdirect.com/product/2c3glftaye-0026-795/id-6871er1078t
If your model number tag does not have any additional digits, I would recommend checking your original control board for a part number, or you can cross-reference the picture of the parts to the part in your washer to see which one your model requires.
If you have an error code, here are all LG front-load washer error codes: searspartsdirect.com/diy/error-codes/washer-repair/1234598/lg-front-load-washer/3204
You can call Sears Home Services at 1-800-4-MY-HOME for repair.
If you'd rather buy a new washer, you can find new washers on Sears.com: sears.com/search=washer?searsTab=true&excludeMarketplace=true
Note: Your current LG washer had an IEC capacity of 3.8 cu ft. All washers now use DOE measurement standards, so your LG would equal approximately 3.3 cu ft. You can use the 3.3 cu ft measurement to compare to current washers.
Hope this helps!