Replace pump on LG W/D Combo WM3431HW

Lucky You. The newer models of LG Combo units WM34xx have the filter on the right hand side and the pump can be changed through the bottom panel.

hSee my reply to tumble dryer not start all of what i said about that problem applies to washing machines too. also add door switch and motor brushes.

sound over load in motor

When I check your model number, the lifter comes up as part # MFE38265101
Changing one,...... oh, you really got to want to. On a difficulty scale of 1 - 10 for repairs on this washer / dryer combo, I would rate it about a 10. Basically, you have to remove the motor, remove the entire outer drum, seperate the halves of the outer drum allowing removal of the inner drum, and eventually removal of the lifter from the back side of the inner drum. If you can do the job in under two hours I think you would set a world record.

http://www.lg.com/us/appliances/washer-dryer-combos/LG-WM3431HW.jsp


Check this link, and click on the right side, for the pdf file, to read the manual. Hope this helps.

You replace the whole drain pump. Pretty easy to do from the opening in the bottom by resting the unit on its back. (Make sure you drain the unit completely) You should be able to get the drain pump (pt #4681EA2001D) from http://www.encompassparts.com/lgconsumer/ for less than $50 + s&h.

hi Of all washing machine parts, the water pump probably takes the most punishment, because it is constantly in use. When the pump fails, you can hear or see the trouble: a loud rumbling inside the machine, or a failure of the water to drain out of the tub. Here's what you can do to fix the problem:


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Take the pump apart and clean 
away all debris inside the pump. 
Also clear away debris from 
the water tubes.

Step 1: Check the drain hoses to make sure they are draining properly. Remove the water supply hoses from the back of the washer. With long-nosed pliers, extract the filter screens from the valve ports in the washer or from the hoses themselves. Wash the screens thoroughly. Then replace them and reattach the hoses. If the machine still rumbles or doesn't drain, examine the pump.

Step 2: To access the pump, first bail and sponge out any water in the machine's tub. Then tip the washer over on its front, using a heavy blanket or pad to protect the washer's finish. Remove the back service panel. The pump is usually located along the bottom of the machine, but with the unit tipped on its front it's easier to remove the pump through the back than through the bottom of the washer.

Step 3: Locate the pump. It has two large hoses attached to it with spring or strap clips. If the clips are the spring type, pinch the ends of the clips together with pliers to release them, and slide the clips down the hoses. If the clips are the strap type, unscrew the metal collar to loosen the clamp. Disconnect the hoses by pulling them off the connections. If the hoses are kinked or crimped at these connections, straighten them as best you can and reconnect them. Then try the machine again to see if this kinking was causing the problem. If the machine still doesn't drain, you'll have to remove the water pump.

Step 4: To remove the pump, loosen the bolt that holds the drive belt taut and move the washer motor on the bracket to loosen the belt. Move the motor out of the way and unbolt the pump; it's usually held by two or three hex-head bolts located on the bottom of the pump housing. As you loosen the last mounting bolt, support the pump with your hand. Then lift the pump out of the washer.

Step 5: You should take the pump apart if you can, because the trouble could be lint, dirt, or pieces of cloth or paper clogging the pump impeller. Clean away all debris inside the pump and clear any debris out of the water tubes. Then reassemble the pump. Hook up the pump again and test it. If cleaning the pump doesn't put it back into working order, or if the pump housing can't be removed, replace the pump with a new one of the same kind.

Step 6: To install the new pump, set it into position and connect the mounting bolts to the pump housing. Move the motor back into position. Tighten the drive belt on the motor by prying it taut with a hammer handle or pry bar; it should give about 1/2 inch when you press on it at the center point between the two pulleys.

Step 7: Reconnect the hoses leading to the pump.

easy first unplug unit..take back remove phillips head screws...now the pump drain hose is the other side of the filter in front just take a pliers remove clamp,,replace hose..close unit plug back in

http://www.partstore.com/Part/LG+Electronics+Incorporated/LG+Electronics%2fZenith/4681EA2001D/New.aspx?ModelMfgName=LG+Electronics+Incorporated&ModelBrandName=LG+Electronics%2fZenith&ModelNumber=WM3431HW

you need a new one of these. i took mine COMPLETELY apart and found the impeller jammed. the impeller is a magnet in a sealed plastic carrier with an electro magnet around it. the electro magnet energizes , the two opposing fields spin the inner magnet ( just like a fish tank filter good idea actually!) the inner magnet on mine had a slight crack from factory causing vibration and allowing debris past the seal then jamming the impeller. to check yours drain it with the small drain tube, then get a towel or two and place around the unit at the floor.pull the large black drain cover off and after the gushing tidal wave look inside. you will see the white impeller. try turning it with w screw driver , pen or whatever. you may be able to remove and then clean / reassemble and be good as new. i only needed two tools to tear the machine apart. a Phillips screwdriver and pliers to get the clamps on the pump (2) and the clamp back on the door to drum gasket.