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I have a LG front loader that won’t drain. Wife said she heard it buzzing like the drain motor was trying to drain, then it stopped buzzing. She thought she smelled something hot. I took the sump drain pump out and it turns freely and the impeller is solid on the shaft. I measured the coil and it measures 14.8 ohms, seems reasonable to me, the coil windings look like a relatively larger gauge wire, so the pump coil is not burned open… I spun the impeller and it doesn’t feel like it is binding at all, the only resistance I feel is magnetic… I blew air through the drain hose and felt some resistance, but then it became easier as if the water shot out into the drain… I was hoping that the pump was shot, it is a cheap part, not I am not certain as to what the problem is.. Any ideas as to what to check? What voltage does it take to run the pump? AC or DC voltage?
Try these solutions first, if they fail there are five more things that can cause this: Cause 1 Drain Pump Sometimes, small objects or articles of clothing can get caught in the drain pump. To determine if anything is blocking the drain pump, remove the drain pump and check the pump for obstructions. If the drain pump is clear of obstructions, but is still noisy during the drain cycle, replace the drain pump. Cause 2 Clogged Pump or Hose Sometimes, socks and other small articles of clothing can get into the drain system and clog the pump hose or the pump itself. Remove the hoses from the pump and check for any obstructions. Cause 3 Lid Switch Assembly The lid switch assembly prevents the washer from spinning when the lid is open. If the lid switch assembly fails, the washer will not drain. To determine if the lid switch assembly is defective, use a multimeter to test each of the lid switches for continuity. If a lid switch does not have continuity, replace it.
