A washing machine that will not drain can leave clothes sitting in dirty water and prevent the washer from completing the wash cycle. When water remains inside the drum after washing, the problem is usually related to a clogged drain system, failed pump, blocked hose, or electrical issue.

A washer may fail to drain because of a clogged drain pump filter, damaged drain pump, blocked drain hose, faulty lid switch, or control problem. Identifying the cause can help determine the correct repair solution.

Below are the most common reasons why a washing machine will not drain and the recommended solutions.

1. Washing Machine Drain Pump

Most Common Solution

Why It Causes Drain Problems

The drain pump removes water from the washer during the drain cycle by pushing water through the drain hose. If the pump becomes clogged, damaged, or fails electrically, water may remain inside the washer.

Common symptoms include:

• Washer fills and washes but will not drain
• Water remains inside the drum
• Humming sound from the pump area
• Washer stops before spin cycle
• Error codes related to draining

If the drain pump is damaged or defective, it will need to be replaced.

How to Replace a Washing Machine Drain Pump

1. Disconnect power to the washing machine.
2. Turn off the water supply.
3. Remove the lower access panel or rear panel if required.
4. Locate the drain pump at the bottom of the washer.
5. Place towels or a container under the pump to catch remaining water.
6. Disconnect the drain hoses from the pump.
7. Disconnect the electrical wiring connector.
8. Remove mounting screws or clips.
9. Remove the old drain pump.
10. Install the replacement drain pump.
11. Reconnect hoses and wiring.
12. Reassemble panels and run a test cycle.

Find Washing Machine Drain Pump Parts
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2. Washing Machine Drain Hose

Why It Causes Drain Problems

The drain hose carries water from the washer to the household drain. If the hose is clogged, kinked, frozen, or damaged, water may not be able to exit the washer.

Common causes include:

• Blocked drain hose
• Hose bent or crushed
• Improper hose installation
• Damaged hose

Symptoms include:

• Washer drains slowly
• Water backs up into the drum
• Water leaks near the washer
• Drain pump runs but water does not leave

How to Replace a Washing Machine Drain Hose

1. Disconnect power to the washer.
2. Turn off the water supply.
3. Pull the washer away from the wall.
4. Locate the drain hose connection.
5. Remove hose clamps.
6. Disconnect the old drain hose.
7. Install the replacement hose.
8. Secure clamps tightly.
9. Position the hose correctly in the drain pipe.
10. Run a test cycle and check for leaks.

3. Clogged Drain Pump Filter

Why It Causes Drain Problems

Many front-load washing machines have a drain pump filter designed to catch coins, lint, and small objects. When the filter becomes clogged, water cannot drain properly.

Common items found in filters:

• Coins
• Buttons
• Hair pins
• Small clothing items
• Lint buildup

How to Clean a Washer Drain Pump Filter

1. Disconnect power to the washer.
2. Locate the drain pump filter access panel.
3. Place a towel or container underneath.
4. Open the filter cover slowly.
5. Remove trapped water.
6. Clean debris from the filter.
7. Reinstall the filter securely.
8. Run a drain cycle to test operation.

4. Washing Machine Lid Switch Assembly

Why It Causes Drain Problems

The lid switch tells the washer that the lid is closed and allows the drain and spin cycles to operate. If the switch fails, the washer may stop before draining.

Symptoms include:

• Washer fills and agitates but does not drain
• Washer does not enter spin cycle
• No clicking sound when lid closes

How to Replace a Washing Machine Lid Switch

1. Disconnect power to the washer.
2. Remove the control panel.
3. Locate the lid switch assembly.
4. Disconnect the wiring connector.
5. Remove mounting screws.
6. Remove the old switch.
7. Install the replacement switch.
8. Reconnect wiring.
9. Reassemble the control panel.
10. Test washer operation.

5. Washing Machine Drain Pump Motor

Why It Causes Drain Problems

The drain pump motor powers the pump impeller that removes water from the washer. If the motor fails, the pump may not operate even though the washer control system is working.

Symptoms include:

• Pump makes no sound
• Humming noise without draining
• Water remains after cycle completion

Solution:

1. Disconnect power.
2. Inspect the drain pump motor.
3. Check electrical connections.
4. Test motor operation.
5. Replace the pump assembly if defective.

6. Washing Machine Foreign Object Blocking the Pump

Why It Causes Drain Problems

Small objects left in pockets can enter the drain system and block the pump or hose. This prevents water from leaving the washer.

Common objects include:

• Coins
• Screws
• Small toys
• Hair accessories

Solution:

1. Disconnect power.
2. Drain remaining water manually.
3. Access the drain pump.
4. Remove any objects blocking the pump.
5. Inspect pump blades for damage.
6. Reassemble and test.

7. Washing Machine Belt or Drive System Problem

Why It Causes Drain Problems

Some washers rely on a belt-driven system to operate the drain pump. If the belt breaks or becomes loose, the pump may not function correctly.

Symptoms include:

• Washer washes but does not drain
• Motor runs but pump does not move
• Burning rubber smell

Solution:

1. Disconnect power.
2. Remove access panels.
3. Inspect the drive belt.
4. Replace damaged or worn belts.
5. Test drain operation.

8. Washing Machine Control Board

Why It Causes Drain Problems

The control board manages the drain cycle by sending power to the drain pump. If the board fails, the washer may not activate the pump.

Symptoms include:

• Drain pump does not receive power
• Washer stops before draining
• Error codes appear
• Multiple functions fail

Before replacing the control board, test the drain pump and wiring.

How to Replace a Washing Machine Control Board

1. Disconnect power to the washer.
2. Remove the control panel.
3. Document wiring locations.
4. Disconnect wiring harnesses.
5. Remove mounting screws.
6. Install the replacement control board.
7. Reconnect all wires.
8. Test washer operation.

9. Washing Machine Timer Assembly

Why It Causes Drain Problems

Older washing machines use timers to control when the drain cycle begins. A faulty timer may prevent the washer from advancing to draining.

Symptoms include:

• Washer stops before drain cycle
• Timer does not advance
• Washer remains full of water

Solution:

1. Disconnect power.
2. Access the timer behind the control panel.
3. Remove wiring connections.
4. Replace the timer assembly.
5. Test washer cycles.

10. Washing Machine Drain Standpipe or Household Drain Blockage

Why It Causes Drain Problems

Sometimes the washer is working correctly, but water cannot drain because the household drain pipe is blocked.

Signs include:

• Water backs up from the drain pipe
• Other sinks drain slowly
• Washer drains normally into a bucket but not the wall pipe

Solution:

1. Check the household drain opening.
2. Remove visible blockages.
3. Use appropriate drain cleaning methods.
4. Contact a plumber if the blockage continues.

Preventing Washing Machine Drain Problems

To help prevent drainage issues:

• Clean the drain pump filter regularly.
• Check clothing pockets before washing.
• Avoid overloading the washer.
• Inspect drain hoses for kinks.
• Use the correct detergent amount.
• Address unusual pump noises early.

Find the Correct Washing Machine Replacement Part

A washing machine that will not drain is commonly caused by a clogged drain filter, blocked hose, failed drain pump, defective lid switch, damaged belt, or control problem.

Always verify your washer model number before ordering replacement parts to ensure the correct fit and compatibility.

At Authentic Appliance Parts, we provide quality washing machine replacement parts and repair resources to help you diagnose washer drainage problems and complete repairs with confidence.