Washer Not Draining? Causes, Checks, and Parts to Replace
When a washer is not draining, water stays in the drum at the end of the cycle. Usually, a blocked pump, a worn belt, or a stuck lid switch is the cause. Below, we list the parts to check in order. First, rule out a clog. Then, move to the pump and switches.
Parts to inspect for a washer not draining problem
1. Drain Pump
The drain pump pushes used water out of the tub at the end of a cycle. When the motor fails or the impeller jams, water stays in the drum. So listen for a hum with no flow and check the pump for debris. Replace the pump if it will not run or is blocked.
2. Pump Belt
On some models a belt drives the pump. When the belt slips or breaks, the washer will not drain. First, check the belt for wear and tension. Then replace the belt if it is glazed or cracked.
3. Direct Drive Pump
The direct-drive pump mounts right on the motor and pushes water out to drain. When its impeller cracks or jams, the washer will not drain. So check the pump for debris and a free-turning impeller. Replace the pump if the impeller is broken.
4. Lid Switch
The lid switch tells the control the lid is closed so the washer can spin. When it fails, the washer fills and agitates but will not spin or drain. Therefore, test the switch for continuity as the lid closes. Replace it if it does not click or make contact.
5. Washer Timer & Electronic Control Board
The timer or control board governs the cycle and powers the pump, motor, and valves in turn. When it fails, the washer may not drain or advance. Therefore, check that the control moves through the steps and powers the pump. Replace it if it stalls.
Clear the drain path before you replace parts
Before you change a part, rule out a simple clog. First, unplug the washer and bail out the standing water. Then, check the drain hose for a kink and clean any lint or coins from the pump filter. Often, a blockage, not a failed part, is why the washer will not drain.
Get the parts
We supply OEM and replacement parts in bulk. Browse the Appliance Parts catalog, or request a bulk quote for volume orders.
Is the unit old or failing often? A new ENERGY STAR certified washer can cut water and energy use, so weigh a repair against a replacement.
Most of the time, a washer not draining problem traces back to one worn part. So replace it, then run a short cycle and confirm the fix.