WM3400CW LG Washer - Instructions

Change the thermistor

We replaced the three dampers, two in the front and one in the back. We referred to the YouTube video someone posted on this page.

Remove old one and replace. Just make sure it is all the way on and secure or you will have a huge mess on your hands.

Removed the old bellows (2 squeeze hose clamps and one screw adjustable hose clamp) slid on the new one and it was done!

Did the repair entirely from the back.- 4 screws back cover comes off. Once you see the Bellows it is obvious what needs to come off and there are other videos on the net showing this. The main things I did differently were 1) Leaned the washer forward and placed 3 2x4 blocks of wood under each back leg. This allowed me to reach under the washer with one hand, and through the back with the other. You need both hands in there ! 2) Uninstalling is easy with just pliers. But on the way back in, I used a pair of Locking Pliers to keep the circular clamp squeezed as much as possible. That seemed the only way to get the bellows back in. Another option would be to switch to screw on Pipe clamps instead of the spring clamps.

Took off the old one and put the other one on. The only difficulty was that my husband has big hands and had a hard time getting to one end.

Contacted LG customer service, not much help there. Watched a very helpful Utube video on how to find and repair the leak. The video suggested that the most common leak is in the drain hose with bellows. Removed the rear panel and removed the bellows unit using pliers for the clamps and screwdriver for the bellows part. This was pretty easy. The rubber bellows was leaking in the exact same place as the youtube video showed. This is a Design Flaw that LG needs to fix. Ordered the new part and installed the bellows portion of the part first, as the angle for that installation needs to be correct. Then attempted to install the end of the hose (very inaccesible) to the pump drain. Very difficult to position the factory supplied spring clamp with pliers so I purchased a screw-type clamp (using the nut-driver rather than a screw-driver to tighten the clamp was helpful) at the local hardware store and that made my job much easier. Note: My unit is mounted on a pedestal, so it was a little easier to access the part location (about one foot off the floor, rather than at floor level), but it may be that the part should be replaced from the bottom of the unit, which would make it much easier to access. Then I installed the other end of the hose to the drain line using a screw-type clamp. I am 69 years old, and not that flexible anymore, so getting down on the floor to reach inside the unit was difficult. You need patience to do this job and you have to make sure all the clamps are properly installed so you don't start the machine up and end up with another leak. For me, this process was difficult and took more than two hours to complete. Limited access to the area made it more difficult and I hate the factory clamps they use. Overall, the repair costs about $25, compared to the $125 just to come look at the machine, then more money to fix the unit. It was satisfying to complete the repair for a small amount of money, but not sure it was worth the aggravation.

Followed the manufacturers instructions to disassemble the washer from the top. There was a video on youtube of a guy who was able to replace his bellows hose from the back, but maybe my arms weren't long enough, I couldn't reach all the way to the front. The washer was pretty easy to take apart, except for taking off the top, where there were 2 extra screws not mentioned in the instructions. Replacing the part was really easy. HERE'S THE MOST IMPORTANT PART: LG DOESN'T MENTION IT IS REALLY HARD TO GET THE CLAMP ASSEMBLY BACK ON THE GASKET WITHOUT A SPECIAL TOOL. You can buy the special LG tool, or you can do what I did (and others on the internet) and buy an $8 "Brake spring spreader" tool at your local auto parts store. Repair was a success. No more water leaking!

First we unplugged the machine. Then turned off the water and disconnected the hoses. Pulled out the machine and laid it on its side to access the themsistor located on the drum. (No, you do not have to remove the control panel at all to replace this part) The thermsistor is clearly seen with a flashlight. There were plastic ties holding the wires of the thermsistor so we used small scissors to cut the ties. Then unplugged the old thermsistor and plugged in the new thermsistor and used a regular bag twist to secure the wires. Repair complete and the machine is back to normal. Thank you Part Select.

The repair went well and your parts are easy to find. This is the second time I have used your services and both times have been great. Your parts are at great prices and your delivery is a lot faster that one would think.
Thank you

The bellows hose on the bottom of the tube had worn through where it flexed. This was an easy job except for the long reach you had to make under the washer to reach the hose clamps that held the part in place. These were spring loaded clamps which were easy to remove with pliers. I replaced them with ones that could be tightened with a socket wrench since it was hard to replace the sprung clamps.

UNPLUG WASHER.Unscrew 4 screws holding silver plate at back of unit. Remove plate to expose inside of unit. Locate drain hose at bottom of washer tub. Hose connects at front drain, bottom of tub, and at rear at the pressure sensor. Front and rear simply slide clamps down by grasping clamp tabs and sliding clamp off connection point. Disconnect from tub bottom by loosening main clamp with Phillips screwdriver and pulling downward. Have a towel handy as there will be water in the hose, and it will pour out when removing it from the unit. Installation is the reverse of removal. ATTACH THE HOSE ASSEMBLY TO THE DRUM FIRST, THEN FRONT, THEN LASTLY REAR. This order is the easiest way, otherwise you will spend extra minutes trying to get the tub connection to seat properly. Plug it back in (duh), then you're good to go for another 4 years or so until another hole wears in the hose. I have performed this repair on 3 different units, with 4 years being the average lifespan of this part.