WM3997HVA LG Washer - Overview

I first tested the motor per the service manual. I checked the resistance between the terminals of the 3 pin connector. It's supposed to be 5-15 ohms. The motor checked out so I replaced the main electrical board. It turns out that wasn't the problem. After a brief web search I found out that the hall sensor (which is attached to the motor stator) was the likely cause of the failure. I replaced that and everything works great now. And now I have a spare main board in case that ever fails. I also want to mention that I took the time to remove the dispenser box (where the water comes in and is directed to the different cleaning products) and cleaned it with a very strong bleach solution. It got rid of the mildew and funky smell. It seems that the fabric softener caused a lot of mildew to form inside the dispenser directly above the fabric softener tray. The bleach took care of that. This is probably something that should be done routinely to keep the mildew from forming.

There is a magnet at the bottom of the door which allows the door to be held ajar when the washer is not in use to allow the tub and gaskets to dry. A tab on the plastic housing which retains the magnet broke which allowed the housing to pull free of the door and stick itself to the machine preventing the door to close. Easy fix to replace the magnet was $18. Instructions were included in the box. Part number on the drawing was A165. PS3618292 Magnetic Door Plunger

Pull washer away from wall. Unplug cord and remove drain hose from receptacle. Remove 4 screws holding panel to rear of washer. Squeeze and slide back hose clamps on each end of drain hose and loosen center clamp with screwdriver. Remove old hose. Reinstall new hose in reverse order using existing clamps. Re-install back panel.