Washing Machine Won't Drain? 6 Causes and How to Fix Them
A washing machine that finishes its cycle with a tub full of standing water is one of the most common service calls we handle across Northern Virginia. The good news: about half the time, the fix is something you can do yourself in under 10 minutes. The other half requires a part replacement that a technician can knock out in a single visit.
Here are the six most common reasons your washer will not drain, ranked by how frequently we see them on service calls in Woodbridge, Dale City, and surrounding areas.
1. Clogged Drain Pump Filter
This is the number one cause of washers not draining, and it is almost always a DIY fix. Front-load washers have a small access panel at the bottom-front of the machine that hides the drain pump filter. Open it, place a shallow pan or towel underneath, twist the filter cap counterclockwise, and pull it out.
You will likely find coins, hair ties, small socks, lint, and other debris clogging the filter. Clean it out, reinsert the filter, and run a drain cycle. This solves the problem about 40% of the time.
Cost: Free (DIY). Takes 5–10 minutes.
2. Kinked or Clogged Drain Hose
The rubber drain hose runs from the back of the washer to a standpipe or laundry sink. Over time, this hose can kink if the washer gets pushed back against the wall, or it can accumulate soap residue and lint internally.
Pull the washer away from the wall, inspect the hose for kinks, and straighten any bends. If the hose feels hard or swollen, disconnect it and flush it with water. Replace the hose entirely if it is cracked or more than 5 years old.
Cost: $10–$20 for a replacement hose. Free if just kinked.
3. Failed Drain Pump
If the filter is clean and the hose is clear, the drain pump itself may have failed. You can often hear the pump trying to run (a loud humming or buzzing noise) but water does not move. Alternatively, the pump may be completely silent, meaning the motor has burned out.
Drain pumps are not a DIY repair for most homeowners because they require disassembly and electrical connections. Our technicians carry replacement pumps for Samsung, LG, Whirlpool, Maytag, and GE washers on every truck.
Cost: $120–$220 including parts and labor.
4. Lid Switch or Door Lock Failure
Top-load washers will not advance to the drain/spin cycle if the lid switch does not detect the lid as closed. Front-load washers require the door lock to engage before draining. If these safety mechanisms fail, the washer stops mid-cycle with water in the tub.
On top-loaders, listen for a click when you close the lid. No click means the switch has likely failed. On front-loaders, check if the door lock indicator light comes on.
Cost: Lid switch: $60–$120. Door lock assembly: $80–$150.
5. Faulty Water Level Sensor
The water level sensor (pressure switch) tells the washer how much water is in the tub. If this sensor fails, the washer may think the tub is empty even when it is full, and skip the drain cycle entirely. Alternatively, it may continuously add water without ever draining.
The pressure switch connects to a small rubber hose inside the washer cabinet. Check that this hose is not clogged, cracked, or disconnected. If the hose is fine, the switch itself likely needs replacing.
Cost: $60–$120 for the pressure switch.
6. Control Board Malfunction
Modern washers rely on electronic control boards to sequence every cycle function, including draining. A power surge, moisture exposure, or simple component failure on the board can prevent the drain command from being sent to the pump.
Try a hard reset: unplug the washer for 5 minutes, then plug it back in and run a drain-only cycle. If the board is intermittently failing, this sometimes works temporarily. A persistent failure means the board needs replacing.
Cost: $180–$350 for control board replacement.
Quick Diagnosis Table
| Symptom | Likely Cause | Estimated Cost |
|---|---|---|
| Water standing after cycle, pump humming | Clogged filter or pump failure | Free – $220 |
| Water standing, no pump noise at all | Pump motor burned out or board issue | $120 – $350 |
| Washer stops mid-cycle, water remains | Lid switch or door lock failure | $60 – $150 |
| Water keeps filling, never drains | Water level sensor fault | $60 – $120 |
| Intermittent drainage failures | Control board glitch | $180 – $350 |
When to Call a Professional
If cleaning the drain filter and checking the hose did not solve the problem, it is time to call a technician. Continuing to run a washer that cannot drain properly can cause water damage to your floor, stress the pump motor, and potentially damage the control board from repeated error cycling.
Our technicians carry drain pumps, lid switches, door locks, and control boards for all major washer brands. Most drain-related repairs are completed in a single visit. Call (571) 727-4482 for same-day diagnosis.
Washer Still Full of Water?
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