LG WM2277HS - water backing up into soap dispenser

Here is a diagram of the dispenser assembly.

I have slightly different model. Tried the remove the top option. It turned out the the drawer assembly had removable top, removed to two screws that held the assembly in place, uncliped e front assymply drawer handle and cleaned out the soap deposits. Soap build up under dispenser parts had caused the problem. It seems like running the machine a few times might have cleared the soap.

Mine too!! Very annoying, especially since the water then drains down onto to floor and has actually made the door hinges stiff! I just use powdered bleach now.

I had the same problem once. Make sure nothing is stacked in front of the soap dispenser when you close the door. Slowly close the door and follow the soap dispenser to make sure it has enough clearance to open.
Let me know how it goes.
Regards,

this would be the soap/ water valve. it is stuck closed or isn't opened.( no cure for an non-opened valve, just replace.)

There should not be suds up that high in the washer. You are experiencing a over sudsing condition and spin is throwing up throw the fill line in the dispenser. Run some fabric softener in a load with no clothes to clean out any hidden suds. Then use only HE (High efficiency) detergent and half of what they recommend! The softer the water the less the soap you use. Sounds like you may be using non HE detergent. My guess if the machine is fine.

probable cause is there is an article of clothing that is stuck between the outer and inner tubs, in the area where the dispenser water and detergent enter the machine. you can run your hand around the rubber boot and you might be able to remove the article, it will be in the upper left part of the machine. if nothing can be found than you have a plugged up dispenser hose.

IE is an inlet error indicating that the machine has not filled up to the correct water level within 10 minutes. Could be a bad inlet valve, low water pressure or a problem with the inlet hoses (do not use anti flood hoses with these machines, use only the included fill hoses).

It sounds like all of your problems lie with the water fill. If the dispenser compartments do not get water added to them then the soap, bleach, and/or softener will not dispense properly. Then it will still be present and may dispense on the next load instead.

It is also VERY important that you use an HE (high efficiency) detergent and the correct amount (2-3 tablespoons per load). Otherwise you could end up with oversudsing issues which can also keep the bleach from dispensing properly.

Also make sure to not use GEL bleach, GEL detergent or GEL softener as they are too heavy and will not dispense properly. If all of these recommendations do not help then there is a definite issue with the incoming water supply from the inlet valves (especially if the IE errors continue). In that case you will need a technician to check the inlet valves inside the machine.

Hope this helps, please rate my solution.

It sounds like the water valve has a clogged filter.  Shut the cold water to the washer off, disconnect the hose and remove the filter screen in the washer water valve.  Clean out the filter with toothbrush.  Reinstall and everything should be ok.