20 Most Recent LG WM3431H Washer and Dryer Questions & Answers

If you are sure the unit is receiving power you can check for proper operation the door switch on unit which will kill power to unit if it is open. If it is ok, using a voltmeter you will need to trace the voltage at the control switch, etc.

LG WM3431H... | Answered on Sep 01, 2017

Never had one and would not want one as the interest rate on them is sky high. Depends on who it is it may be a few 100% but can be 2,3,4000% so what looks good being able to get money quick you end up paying a lot more in the end. The only winners are them.

LG WM3431H... | Answered on Feb 09, 2017

Thanks to CoolTech for pointing me in the right direction, I just finished a full clean out and diagnostics test and my dryer works once again.

This repair isn't rocket science nor is it a good idea for the mechanically timid. I managed to get the critical parts out for cleaning and back in properly with just a phillips head screwdriver and a pair of pliers for the spring type hose clamps so it's not a matter of custom tools.

You have dig pretty deep and remove an awful lot of cabinet parts, fans, heater assemblies and something like 30 or 40 various screws to get to the condensor duct and bellows to clean them. Sure enough my condensor duct was jam packed with lint. Once removed I was able to clean it with a creatively bent coat hanger, but a semi flexible bottle brush/pipe cleaner about 18 inches long and an inch or so brush diameter would be a better tool.

If you want to tackle this job, and again it sounds daunting but isn't to someone with reasonable mechanical skills you should do yourself a favor and buy a copy of the factory service manual. I got mine on line from these guys: http://www.manualuniverse.com/ but there are probably other sources including LG if you search by the model number.

In addition to some less than obvious disassembly instructions the manual tells you how to trigger the self test mode and how to interpret the results, gives you good information on cold state resistance tests you can do on relays, heater elements, sensors, etc. and provides a good troubleshooting guide for a variety of problems.

All in all the job took me about an hour and a half and was pretty straightforward except for the last mounting screw for the condensor duct which is hard to get to and requires some effort to remove and replace but again I did the whole job with a standard medium sized screwdriver so it's not impossible.

Good luck and if you're having this problem and like me you don't have any local repair folks who'll touch it (not many of these all in ones in Wyoming) then I'd get your hands on the manual and dig into it. It's not fun, but not too hard either.


LG WM3431H... | Answered on Nov 07, 2015

usually do to condensation which is a result of bad venting in the blower, the tubes, the glides, and the door, and even a bad moister sensor check it with a meter for continuity and for amount of ohms but at a high temperature not room temperature









LG WM3431H... | Answered on May 25, 2015

bottom right coner under door theres a panel take that off u will see the pump pugg

LG WM3431H... | Answered on Jan 18, 2013


If the washer is not draining then it is due to a clogged drain pump or a drain filter or a kinked drain hose. To resolve the issue you'll need to clean the drain hose, inspect if the drain hose is plugged. If the hose is fine, then remove the front kick panel and access the drain pump and filter, if you are unable to find the pump and filter remove the back panel as well and trace the drain hose to the bottom of the tub. There is a drain filter connected with the drain pump. It usually gets clogged, and needs to be cleaned every 6-8 months or so. The drain filter is a small white filter connected to drain pump with a hose. If it still doesn't work then you'll need to check the connections of the drain pump, check the electrical connections with a multimeter. If it still doesn't work then you would need to replace the drain pump. Hope this helps...


LG WM3431H... | Answered on Jan 10, 2011

take the lid off
check your inlet valves are they ok
take the back panel off and check all your hoses
find out what is leaking and then i can help you to take apart further
make sure that you unplug it first though.

LG WM3431H... | Answered on Feb 14, 2010

hello. I can help you. Typically this problem is related to a partially clogged dryer vent pipe. pull the dryer out from the wall and remove the vent pipe. check every thing and remove any lint or other blockage in the rear of the dryer and in the vent. Dont forget to go outdoors and check the place where the pipe dumps the dryer air outdoors as it may be clogged there also.

LG WM3431H... | Answered on Jan 12, 2010

If you use a Y connector to provide water to the washer it will not be able to use different water temperatures. The water temperature at both the cold and hot inputs will be whatever comes out of the tap. The washer controls cold and hot inputs separately to change teh water temperature in the machine. A Y tap will only provide one temperature (whatever the tap is set to provide) to both inputs. If the tap is a faucet you could control the temperatures manually but the machine needs to have a water supply at both of its inputs.

LG WM3431H... | Answered on Dec 09, 2009

well there must be some problem with the motor engine you should get it checked.

LG WM3431H... | Answered on Jul 23, 2009

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