Washer Not Draining: Where the Water Stops
When a washing machine finishes with water still in the drum, the water is being stopped at one of six points: the filter, the drain pump, the drain hose, the standpipe it empties into, the pressure sensor that tells the machine the tub is empty, or the control that runs the pump. The first is behind a small door at the front of most machines and takes ten minutes. The rest are inside the cabinet.
What causes it
| Cause | What you see | Who fixes it |
|---|---|---|
| Clogged filter or coin trap | A slow drain that got worse over months, a smell, sometimes a rattle | You can clear it |
| Blocked drain hose | The machine hums and strains, water level drops very slowly or not at all | You can check the loop |
| Standpipe or house drain blocked | Water backs up out of the standpipe onto the floor when the machine drains | Plumber, not the machine |
| Jammed drain pump | A hum with no water movement, often after washing something that shed a wire or a coin | Technician |
| Failed drain pump | No sound at all at the point in the cycle where the pump should run | Technician |
| Pressure sensor or control fault | The machine thinks the tub is already empty and moves on, or stops with an error | Technician |
Five stops on the way out. The water is being held at one of them.
What you can check yourself
- Switch the machine off at the socket before you open anything.
- Find the small access door at the bottom front of the cabinet. Put a shallow tray and a towel under it: there is more water behind that filter than you expect.
- Unscrew the filter slowly, let the water out in stages, then pull it clear and rinse it. Coins, hairpins, bra wires and buttons live here.
- Reach into the empty filter housing and turn the impeller with a finger. It should spin freely. If it does not, something is wrapped around it.
- Check the drain hose behind the machine for a kink, and make sure it is not pushed more than a hand's depth into the standpipe.
- Run a spin-and-drain cycle and listen. A hum with no water means the pump is jammed; silence means the pump or the control is not working.
Where to stop
Stop when the filter is clean, the impeller turns and the hose is clear, and the machine still will not drain. Past that point the pump, the pressure sensor and the control board are inside the cabinet, and on a front loader that means moving a machine that still has water in it.
Call C&C Appliance Repair at (800) 860-0974 for same-day service across Los Angeles and Orange County.
The filter door, the tray and the impeller behind it.
What the visit looks like when the blockage is past the filter.
Questions we get asked
Can I run another cycle to push the water through?
No. If the impeller is jammed, running the pump again is how it burns out, and a burnt pump costs several times what clearing the filter does. Drain the machine at the filter first.
How do I empty the drum before the technician arrives?
Open the filter door, hold a shallow tray under it and unscrew the filter a turn at a time, letting the water out in stages. On a machine with no filter door, lower the drain hose into a bucket on the floor: water runs out by gravity.
Water comes out of the standpipe onto the floor. Is the washer at fault?
Usually not. If the machine is pumping and the water backs up out of the pipe, the house drain is blocked, not the washer. That is a plumber's job.
Why did the machine stop mid-cycle with an error instead of just draining?
Most washers refuse to spin until the pressure sensor says the tub is empty. If the water cannot leave, the machine halts and shows a drain error rather than spinning a full drum.
How long does the repair take?
Most drain repairs are one visit. Our vans carry drain pumps and hoses for the common brands, so there is usually no second trip for parts.
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