Standing water in the drum after a cycle ends is one of the most common laundry calls we run across the Tri-Valley. The good news: a washer that will not drain is usually a blockage, not a dead machine. Most of the time you can find the cause yourself in twenty minutes. The rest of the time it points to the drain pump, and that is a part swap a tech handles fast.
This guide covers the not-draining symptom specifically. If you want the broader picture across washers and dryers, the washer and dryer repair guide walks through bearings, control boards, and motor couplers too.
Start by draining the water safely
Before you diagnose anything, get the standing water out so you are not working in a flooded tub. Turn the machine off and unplug it. Lay down towels and have a shallow pan ready. On a front-loader, open the small access panel at the lower-right front, find the round pump filter, and slowly unscrew it to let water drain into the pan. On a top-loader, the easier path is to lower the drain hose at the back into a bucket below the water line and let gravity pull it out.
Cause 1: a clogged pump filter (the coin trap)
The pump filter catches coins, hair pins, lint balls, and the occasional sock. When it packs up, water cannot reach the pump impeller. This is the single most common reason a washer stops draining.
With the machine drained, fully unscrew the filter and pull it out. Clear anything wrapped around it, rinse it under the tap, and reach into the housing to feel for debris stuck to the impeller. Spin the impeller with a finger. It should turn freely. Reseat the filter snugly so it does not leak, then run a rinse-and-spin to test.
Cause 2: a kinked or blocked drain hose
The drain hose runs from the pump to your standpipe or laundry sink. Two things go wrong here. It kinks behind the machine when the unit gets pushed back against the wall, or it clogs with lint and detergent sludge where it bends.
Pull the machine out far enough to see the hose. Straighten any kinks. Detach the hose end from the standpipe and check for a blockage by running water through it or feeding a drain snake. While you are back there, check the standpipe itself. A backed-up house drain mimics a washer fault exactly, and no amount of pump work fixes a clogged standpipe.
Cause 3: a failing drain pump
If the filter is clean and the hose is clear but the water still sits there, the pump is the next stop. Listen during the drain portion of the cycle. A pump that hums or buzzes but moves no water has either a jammed impeller or a worn motor. A pump that is dead silent during drain may have lost power from a failed pump or a wiring fault.
A burnt smell near the pump, or visible cracking on the impeller blades, means replacement. This is where most people hand it off. Pump access, the electrical connector, and seating the new pump without leaks are straightforward for a tech and fiddly for a first-timer.
When to call a technician
Call us if the pump hums with no flow, if you smell burning, if the control board throws a drain error after the filter and hose check out, or if you would rather not pull the cabinet apart. Those symptoms point past a simple clog toward the pump motor, the drain sensor, or the board. We service all major laundry brands. See our laundry repair page for what we cover, and the GE washer job notes from Alamo for a real example of a drain diagnosis.
ADRIUM Service Solutions has run appliance repair across the Tri-Valley since 2021. We are CSLB licensed (#1136642), EPA certified (#1279674151528), BEAR registered (#50788), and A+ rated with the BBB. The diagnostic is $75, credited to the repair when you book it, with a written estimate before any work begins.
Water sitting in your washer? Call or text (925) 999-4095, or email [email protected], and we will get the drain sorted. You can also reach us through the contact page.
FAQ
Why is my washer not draining but spin still works? The wash motor is fine and the problem is downstream. Check the pump filter, then the drain hose, then the pump itself.
Where is the drain pump filter? On most front-loaders it sits behind a small panel at the lower-right front. Lay towels down first, since the tub can dump a gallon or more.
Should I keep running cycles to force it through? No. Running against a blockage overheats the pump and shortens its life. Drain it manually and clear the clog first.