Phillips screwdriver
Use it for: To remove access panels or pump mounting screws.
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How to Replace a Washer Drain Pump
If your washer fills and washes but will not drain, and the drain hose is not kinked or clogged, replacing the washer drain pump is a common fix.
This repair is mostly about safe access, controlling leftover water, and moving the hoses and wire plug to the new pump in the same positions. Take a photo before you disconnect anything, and test the washer with a real drain cycle when you are done.
Before you start: Match the pump housing layout, hose ports, and washer compatibility before ordering.
Safety first
- Unplug the washer before opening any panel or disconnecting the pump wiring.
- Expect leftover water in the tub and hoses even if the washer will not drain at all.
- Use gloves around sheet-metal cabinet edges and dirty standing water.
- Do not test the washer with panels removed if doing so exposes moving parts or electrical connections you cannot avoid.
Tools you may need
Nut driver or socket set
Use it for: Many washers use hex-head screws on lower panels and pump brackets.
Shop nut drivers and sockets
Slip joint pliers
Use it for: To compress hose clamps and remove the drain hoses from the pump.
Shop slip-joint pliers
Shallow pan or tray
Use it for: To catch the water that spills out when the pump hoses come off.
Shop drain pans
Old towels
Use it for: To protect the floor and soak up leftover water around the pump area.
Shop absorbent shop towels
Work gloves
Use it for: To protect your hands from sharp cabinet edges and dirty standing water.
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Step-by-step fix
Step 1: Make sure the drain pump is the likely problem
- Unplug the washer before touching the pump area or removing any panel.
- Check the drain hose behind the washer for a hard kink, crush, or obvious clog at the standpipe or sink connection.
- If your washer has standing water, listen back to what it was doing before it failed: a bad pump often hums, buzzes, or stays silent when the washer should be draining.
- If you can access a pump filter or cleanout on your washer, clear coins, lint, and debris first because a blocked filter can act like a failed pump.
- If the washer still will not drain after the hose path is clear and the filter is clean, plan to replace the pump.
If it works: You have ruled out the easiest external causes and the drain pump is a reasonable next repair.
If it doesn’t: If clearing the hose or filter restores normal draining, you do not need to replace the pump right now.
Stop if:
- You smell burning insulation, see melted wiring, or find water leaking onto electrical parts.
- The washer will not power on, will not spin at all, or has a broken tub or major cabinet damage, because the problem may be larger than the pump.
Step 2: Set up the work area and get the washer accessible
- Pull the washer forward enough to work comfortably and protect the floor with towels.
- Turn off the water supply if you need to tip or move the washer more than a few inches.
- Remove the lower front, rear, or service panel needed to reach the drain pump. Keep the screws together.
- Place a shallow pan and towels under the pump area before disconnecting anything.
If it works: You can clearly reach the drain pump and you have a safe way to catch leftover water.
If it doesn’t: If access is too tight, move the washer farther out and check for hidden screws along the panel edges.
Stop if:
- The washer feels unstable, too heavy to move safely, or must be stacked in a way that makes access unsafe.
Step 3: Drain the remaining water and remove the old pump
- Take a clear photo of the pump, hose positions, wire connector, and mounting orientation.
- Loosen the hose clamps with pliers and ease the hoses off the pump one at a time, letting water drain into the pan.
- Disconnect the electrical plug from the pump motor without pulling on the wires.
- Remove the pump mounting screws or release the pump from its bracket, then lift the old pump out.
- Check the hoses for lodged socks, coins, or debris before installing the new pump.
If it works: The old pump is out and the hoses and connector are ready for the replacement.
If it doesn’t: If a hose is stuck, twist it gently to break it loose instead of prying hard enough to crack the pump housing or hose fitting.
Stop if:
- A hose is split, the wire connector is burned, or the mounting area is cracked or badly rusted, because replacing only the pump may not solve the leak or drain failure.
Step 4: Install the new washer drain pump
- Compare the new pump to the old one and make sure the ports, connector, and mounting points match.
- Set the new pump into place in the same orientation as the original and secure it with its screws or bracket.
- Reconnect the electrical plug until it seats fully.
- Push the hoses fully onto the correct pump ports and reinstall the clamps in the same sealing positions as before.
- Wipe the area dry so any new leak will be easy to spot during testing.
If it works: The new pump is mounted securely, wired correctly, and the hoses are fully seated.
If it doesn’t: If the new pump does not line up or the hose ports differ, recheck compatibility before forcing the installation.
Stop if:
- The replacement pump does not match the original well enough to mount securely or connect the hoses without strain.
Step 5: Reassemble the washer and run a controlled drain test
- Reinstall the access panel loosely or fully, depending on whether you can still watch the pump area safely during the first test.
- Restore power and water if you turned them off.
- Run a short rinse, drain, or spin cycle and watch for leaks around the pump and hose connections.
- Listen for the new pump to run smoothly and confirm water leaves the tub promptly.
- If the first test is dry, tighten any remaining panel screws and push the washer back into place carefully without crushing the drain hose.
If it works: The washer drains, the pump runs, and there are no leaks during the first test cycle.
If it doesn’t: If a hose connection drips, unplug the washer and reseat the hose and clamp before testing again.
Stop if:
- Water leaks onto wiring or the floor heavily enough that you cannot control it safely.
- The washer still will not drain even with the new pump installed, because the blockage or failure may be elsewhere in the drain path or controls.
Step 6: Confirm the repair holds in real use
- Wash a small load and stay nearby through the drain and spin portions of the cycle.
- Check again for slow draining, unusual pump noise, or water under the washer after the cycle ends.
- Look behind the washer to make sure the drain hose is still routed correctly and not kinked after you pushed the machine back.
- If everything stays dry and the tub empties normally, the repair is complete.
If it works: The washer drains normally in a real cycle and stays dry afterward.
If it doesn’t: If the washer drains slowly or leaves water behind, inspect the house drain, internal hoses, and any pump filter area for a remaining restriction.
Stop if:
- The washer leaks from another component, trips power, or makes severe mechanical noise during spin, because a separate repair is needed.
Replacement Parts
Find a washer drain pump on Amazon
Match the pump housing layout, hose ports, and washer compatibility before ordering.
As an Amazon Associate I earn from qualifying purchases. Repair Riot may earn a commission at no extra cost to you.
Verify the repair
- The tub drains fully during a rinse, drain, or spin cycle.
- No water drips from the pump body, hose ports, or nearby connections.
- The pump sounds steady during draining instead of grinding, buzzing, or straining.
- The washer finishes a small load without leaving water in the tub or on the floor.
FAQ
How do I know the washer drain pump is bad?
A bad pump often shows up as a washer that washes normally but will not drain, drains very slowly, or hums during the drain portion without moving water. Check for a kinked drain hose or clogged filter first, because those problems can look the same.
Can I replace a washer drain pump myself?
Many homeowners can handle it with basic tools if they can safely access the pump and manage the leftover water. The main jobs are removing a panel, moving hose clamps, swapping the wire plug, and checking for leaks.
Why is there still water in the washer after I unplug it?
The tub, sump area, and pump hoses can hold a surprising amount of water. That is normal during this repair, so set towels and a shallow pan under the pump before loosening the hoses.
Should I replace the hoses when I replace the pump?
Not always. Reuse the hoses if they are flexible, intact, and seal well. Replace them if they are split, hardened, swollen, or damaged at the ends.
What if the new pump is installed and the washer still will not drain?
The problem may be a clog in the internal hose or house drain, a blocked filter area, damaged wiring, or a control issue. At that point, the pump was not the only cause and more diagnosis is needed.