Washer not draining: what to check and what it means

First, notice what the washer is doing

Before you start pulling things apart, watch one drain attempt. Run a drain and spin or rinse and spin cycle and listen.

• You hear a hum or a buzz but no water moves: the drain pump is getting power but something is jamming it, or the pump has failed.
• You hear nothing at all at the point it should drain: the pump may not be getting power, or the washer never got the signal to drain (lid lock, lid switch or control).
• It drains slowly, then spins with water left: a partial clog in the filter, the pump or the hose.
• It drains, but the clothes come out soaking wet: it is a spin problem, not a drain problem, often an unbalanced load or a worn drive part.
• The display shows a code: write it down exactly. Codes like OE, 5E, F21 or ND usually mean a drain timeout.

The real causes, from most to least common

Something stuck in the filter or the pump. On front-loaders this is the most common reason by a wide margin. Small items get past the drum and land in the pump filter or wedge in the pump impeller. What it looks like: a humming pump that moves little or no water, and a rattling or grinding noise when it does run. Cleaning the filter fixes most of these. If something is lodged past the filter, inside the pump housing, that is a job for us.

Kinked or clogged drain hose. Washers get pushed back against the wall after cleaning or a move, and the hose folds. Lint and sock fibers can also pack into the hose where it bends. What it looks like: slow draining or none, with the pump running normally.

Failed drain pump. The drain pump is a small electric pump at the bottom of the washer. The motor can burn out, the impeller can break, and the seal can leak. What it looks like: a pump that hums with no flow even after the filter is clear, no sound at all, or water on the floor under the machine from a leaking pump. A leaking pump left running can damage the floor under it, so stop using the washer if you see water there.

Lid switch or door lock. Many washers will not drain or spin unless they see the lid closed or the door locked. When the lid switch or door lock assembly fails, the machine stops at the drain step and waits. What it looks like: the washer fills and washes normally, then sits with water in it, often with the lock light blinking or a door code on the display.

Pressure switch or its air hose. The pressure switch tells the control how much water is in the tub. If its small air hose is clogged or the switch fails, the control can think the tub is empty or full when it is not. What it looks like: odd fill levels, a drain that stops early, or a cycle that seems to skip around.

Control board or wiring. Less common. A failed relay on the control board, or a damaged wire to the pump, means the pump never gets power. What it looks like: no pump sound at all, with a clean filter and a good lid lock.

When to call a technician

Call us if:

• The filter is clean, the hose is straight, the house drain is clear, and it still will not drain.
• The pump hums with no flow, makes a grinding noise, or makes no sound at all.
• There is water on the floor under the washer.
• The door will not unlock or the lid lock light keeps blinking with water in the tub.
• You keep getting the same drain code after cleaning the filter.
• The washer is under a manufacturer, extended or home warranty. File with the plan first; our warranty repair page explains how that works with us.

Stop using it and unplug it if you smell burning, see smoke or sparks, or feel a tingle or a shock when you touch the cabinet or the water. Do not reach into a tub of water on a machine that may have an electrical fault until the power is off at the breaker.

Our technicians have over 15 years of repair experience with front-load and top-load washers. We diagnose first and quote the repair before we do it. Our washer repair service has more on what we work on, you can request a visit here, and we cover homes in Locust Grove, Lake of the Woods and Fredericksburg.