– Stuck a small drain snake (25 ft, ¼ inch) down the pipe. Hit resistance around 4 feet in – bingo. Pulled out a nasty wad of lint, a bobby pin, and what looked like shredded fabric.
: Place a shallow pan or towels under the small access door at the bottom front of the machine.
Snaking the standpipe + cleaning the pump filter. After that, ran a rinse/spin cycle and the water drained perfectly.
: Verify the drain hose is installed at the correct height; typically, the standpipe should be between 600mm and 1000mm high to allow for proper gravity drainage.
If the machine's internal parts are clear but water still backs up, the blockage is likely in your home’s plumbing. Washing Machine Not Draining - Support - Haier
If you have a washing machine that drains into a vertical standpipe, buy a lint trap for the end of your hose immediately. They cost about $5 and would have saved me a $200 plumber bill and a ruined rug.
Sewer-like smells indicating stagnant water or a dry P-trap. Primary Causes of Blockages