Washing Machine Loud Noise When Draining

Introduction

A loud noise coming from your washing machine when it’s draining can be alarming and disruptive. It usually indicates that something isn’t working correctly within the drainage system. Ignoring this noise can lead to more serious problems, like water damage from leaks or complete pump failure. The noise often occurs during or right after the wash cycle as the machine pumps out the water. Addressing the issue promptly can save you money on costly repairs and prevent further damage to your appliance and home.

Common Causes of Washing Machine Loud Noise When Draining

Here are some common culprits behind that racket:

• Clogged Drain Hose: A blockage in the hose restricts water flow and makes the pump work harder, creating noise.
• Obstructed Drain Pump: Small items like socks, coins, or lint can get lodged in the pump, causing it to vibrate and make a loud noise.
• Worn Pump Motor: Over time, the bearings in the pump motor can wear out, leading to increased noise during operation.
• Foreign Object in the Tub: Items can sometimes slip between the inner and outer tubs, creating a grinding or scraping sound as the drum spins and water drains.
• Loose Drain Pump Mounting: If the pump isn’t securely mounted, it can vibrate against the machine’s cabinet, causing a loud rattling noise.
• Partially Blocked Drain Pipe: A clog further down the drainpipe can back up water and strain the washing machine’s drain pump.
• Damaged Impeller: The impeller, the rotating part of the drain pump, can be damaged by foreign objects, causing it to make noise.
• Air in the Drain Line: If air gets trapped in the drain line, it can create gurgling or rattling sounds during the drain cycle.

Symptoms Checklist

Here’s how to pinpoint the problem:

• Loud grinding, rattling, or humming noise only during the drain cycle.
• Water draining slowly or not at all.
• The washing machine shaking excessively.
• Error codes related to drainage on the machine’s display.
• Visible obstructions in the drain hose.
• A burning smell (rare, but a sign of a failing pump motor).

How to Fix Washing Machine Loud Noise When Draining Step-by-Step Guide

Follow these steps to troubleshoot the noise:

1. Unplug the Washing Machine: Safety first! Disconnect the power cord from the outlet.
2. Locate the Drain Hose: It’s usually at the back of the machine.
3. Inspect the Drain Hose for Kinks: Make sure the hose isn’t bent or pinched. Straighten any kinks.
4. Detach the Drain Hose: Carefully detach the hose from the drainpipe. Have a bucket ready to catch any water.
5. Check for Clogs in the Drain Hose: Shine a flashlight into the hose. If you see debris, use pliers or a straightened coat hanger to remove it. Flush the hose with water to clear any remaining blockages.
6. Locate the Drain Pump: This is usually accessed from the front or back of the machine behind an access panel. Refer to your owner’s manual for the exact location.
7. Access the Drain Pump Filter: Many washing machines have a small filter on the drain pump. Open the filter cover (again, have a bucket ready!).
8. Clean the Drain Pump Filter: Remove any lint, coins, or other debris from the filter.
9. Inspect the Drain Pump Impeller: Look inside the drain pump housing. Use your finger (carefully!) to check if the impeller spins freely. If it’s stuck or feels obstructed, there might be something lodged in the pump itself.
10. Remove Obstructions from the Pump: If you can see an obstruction, use pliers to remove it. You may need to partially disassemble the pump (refer to your owner’s manual if needed) to access the obstruction.
11. Check the Drainpipe: Ensure the drainpipe where the hose connects is not clogged. A simple test is to run water down the drainpipe from a faucet. If it drains slowly, its clogged.
12. Reassemble the Washing Machine: Once you’ve cleared any obstructions, reassemble the drain pump filter, reattach the drain hose, and replace any access panels.
13. Plug the Washing Machine Back In: Restore the power.
14. Run a Test Cycle: Run a short wash and drain cycle to see if the noise is gone.

Fix the Issue Without Buying Parts

Here are some methods to try before considering part replacement:

• Reset the Washing Machine: Unplug the machine for 10 minutes, then plug it back in. This can sometimes reset the control board and resolve minor issues.
• Run a Cleaning Cycle: Use a washing machine cleaner to remove buildup and debris from the tub and drain system.
• Inspect the Leveling Legs: Ensure the washing machine is level. An unlevel machine can vibrate excessively and cause noise. Adjust the leveling legs as needed.

When Replacement Might Be Necessary

If the noise persists after troubleshooting, the drain pump motor itself may be failing. Replacement is a last resort. A new drain pump can cost between $50 and $150 USD, plus labor if you hire a technician. The most common parts to fail are the drain pump motor and the impeller.

Safety Warning

• Always unplug the washing machine before performing any maintenance or repairs.
• Be careful when handling water; mop up any spills to prevent slips and falls.
• If you’re uncomfortable performing any of these steps, consult a qualified appliance repair technician.

Tools You May Need

• Pliers
• Screwdrivers (Phillips and flathead)
• Bucket
• Flashlight
• Towels
• Coat hanger (straightened)

FAQ

Here are some frequently asked questions:

• Q: Why is my washing machine so loud only when it drains? A: Its often due to an obstruction in the drain pump or drain hose, causing the pump to work harder and make noise.
• Q: Can I still use my washing machine if it’s making a loud noise when draining? A: It’s best to avoid using it until you’ve identified and fixed the problem to prevent further damage.
• Q: How often should I clean my washing machine’s drain pump filter? A: Ideally, clean the filter every 3-6 months, or more frequently if you notice slow draining.
• Q: The noise is intermittent. Does that change anything? A: Intermittent noises still indicate a problem. Check for loose debris in the pump or a partially blocked hose.

Conclusion

Troubleshooting a loud washing machine drain noise can seem daunting, but by following these steps, you can often identify and resolve the issue yourself. Before calling a technician, take the time to inspect the drain hose, clean the pump filter, and check for any obstructions. You might be surprised at how often a simple fix can solve the problem and save you money. If, however, the noise persists, consulting a professional is always a wise decision.