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<<<Correction---the Pump Housing is *always* "primed" whenever water is in the tub.At the end of a drain/spin cycle---at least 2 to 4 cups of water will remain in the Pump Housing.
I have an LG WM3360HVCA Front Loader, which was giving me an OE error. Of course I didn't get the extended warranty, am at 1 1/2 years.. Checked the inline filter, pretty clean, nothing that would stop water. I did the smart diagnostic check, the person on the end of the line figured it was the pump. OK. so this is a spendy washing machine, so I scheduled a repair visit. That was over a week out. No complaints, but what the heck. Did some online research. Went back and tried the washer again, using the spin cycle like the diagnostician told me. Did not get any water out, water was visible in the tub. Took the drain hose, blew it back, heard water moving and was able to clear the line. Tried the spin cycle, water pumped out. Wheee! Only worked once. Could hear the pump humming, no other souncs. Found a youtube video on replacing the pump, thought what the heck, it isn't under warranty anyway, carefully disassembled it. Pretty simple process, I like the engineering and the video really helped a lot! Pump looked pretty good, no debris. Pulled the pump out of the housing, pulled out the rotor assembly with the internal magnet, water drained from there. O ring sealed, don't think it should have any moisture there. Reassembled, found some insulated female spade terminals and plugged her in.. no hesitation, slight ticking noise. Everything appears tight, no debris in the housing or impeller or visible behind the rotor shaft. Put everything back in place. Ran a cycle, no problems. Yey! But, it only worked a couple of times, then got the OE error again. Mind you, at this time, I had the hose Tywrapped to the utility sink faucet so I can observe water flow. Good to know about the hose being stuffed down the stand pipe too far, thank you for that. So, ordered new pump online, 2 day freight, just replaced it, only took an hour this time. Secured the drain hose appropriately, started her back up, did a full cycle w/o clothes, seems to be running fine. Time will tell. Did I miss anything?
We have a lg wm2277hw and started getting OE code last night. I pulled drain hose and nothing came out. I unscrewed the filter and drained some water out and reset and it completed the load. This morning.....same issue. I pulled the drain hose, plug and attached my small compressor to the end and slowly applied air......plugged! I applied more air and POP! out rushed water a what looked like mud! I drained completely pulled screen and it was loaded with beach sand! Cleaned completely and it's running like a champ! Thanks guys!