Washing Machine Grinding Noise When Draining

Introduction

A grinding noise coming from your washing machine during the drain cycle is a common and often unsettling problem. It usually indicates that something is obstructing the drain pump or that a component is failing. Ignoring this noise can lead to more serious issues like a completely blocked drain, water damage to your laundry area, or even damage to the washing machine itself. Addressing it promptly can save you money and prevent a bigger headache down the line.

Common Causes of washing machine grinding noise when draining

Here are some of the most frequent culprits behind that grinding sound:

• Foreign Objects in the Drain Pump: Small items like coins, buttons, or socks can slip through the wash tub and get lodged in the drain pump.
• Worn-Out Drain Pump: Over time, the drain pump’s impeller (the spinning part) can wear down or break, causing a grinding noise.
• Clogged Drain Hose: A buildup of lint, hair, or soap residue can partially block the drain hose, straining the pump and creating noise.
• Blocked Drain Filter: Many washing machines have a drain filter designed to catch debris. If this filter is clogged, it can restrict water flow.
• Damaged Impeller Blades: If the impeller blades are chipped or broken, they can vibrate and cause a grinding sound.
• Loose Objects in the Tub: Though less common, larger objects like a bra underwire caught between the tub and the drum can cause a grinding noise when the tub rotates during the drain cycle.
• Faulty Motor Coupling: In direct-drive machines, a worn motor coupling between the motor and the transmission can cause grinding noises, especially during high-speed drain cycles.
• Worn Drum Bearings: Although drum bearing issues usually manifest throughout the wash cycle, they can sometimes become more prominent during the high-speed drain/spin cycle.

Symptoms Checklist

Use this checklist to help pinpoint the issue:

• Loud grinding noise specifically during the drain cycle.
• Slow or no water draining from the washing machine.
• The washing machine stops mid-cycle, displaying an error code.
• Vibrations or shaking during the drain cycle.
• Standing water remains in the drum after the cycle is complete.
• You can hear a rattling sound when you manually spin the drum.

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

Important: Before starting any repair, unplug the washing machine from the power outlet.

1. Unplug the washing machine: Safety first!
2. Locate the drain pump access panel: This is typically at the front bottom corner of the machine. Refer to your owner’s manual if needed.
3. Prepare for potential water spillage: Place a shallow pan or towels beneath the access panel to catch any water that might leak out.
4. Open the access panel: Usually, there’s a small door or a screw-on cap.
5. Locate the drain pump filter: This filter is usually cylindrical and can be unscrewed or pulled out.
6. Carefully remove the drain pump filter: Unscrew it slowly, allowing any trapped water to drain into the pan.
7. Inspect the filter: Check for any obstructions like coins, buttons, lint, or hair.
8. Clean the filter thoroughly: Rinse the filter under running water and remove all debris.
9. Inspect the drain pump housing: Use a flashlight to look inside the drain pump housing for any visible obstructions. You may need to use pliers or tweezers to carefully remove any debris.
10. Check the drain hose: Disconnect the drain hose from the back of the washing machine or from the drain pump (depending on your model) and inspect it for clogs. You can use a straightened coat hanger or a plumber’s snake to clear any blockages.
11. Reassemble the drain pump filter: Securely screw the filter back into place.
12. Close the access panel: Make sure it’s properly closed and latched.
13. Reconnect the drain hose: Ensure the hose is firmly attached.
14. Plug the washing machine back in:.
15. Run a test cycle: Select a short wash and drain cycle to see if the grinding noise is gone. Observe if the water drains properly.

Fix the Issue Without Buying Parts

Before considering replacement parts, try these free methods:

• Reset the washing machine: Unplug the machine for 1-2 minutes, then plug it back in. This can sometimes clear error codes and reset the system.
• Clean the washing machine: Regularly run a cleaning cycle with a washing machine cleaner to prevent build-up that can contribute to clogs.
• Inspect the drain hose connection: Ensure the drain hose isn’t kinked or bent, as this can restrict water flow.
• Level the washing machine: An unbalanced machine can cause excessive vibrations, which can sometimes sound like grinding. Adjust the leveling feet at the bottom of the machine to ensure it’s stable.

When Replacement Might Be Necessary

If cleaning and inspecting the drain pump and hose don’t resolve the grinding noise, the drain pump itself may be failing. Replacement is usually necessary in this case. A new drain pump typically costs between $50 and $150 USD, depending on the washing machine model. Bearings replacement requires professional skills and sometimes a full tub assembly. Parts commonly failing include the drain pump motor, impeller, and the drum bearings (although these are more complex to replace). For more related activities, check out our Washing Machine Drum Making Loud Noise.

Safety Warning

• Always unplug the washing machine before performing any repairs.
• Be careful when handling water; mop up any spills immediately to prevent slipping.
• If you’re uncomfortable performing any of these steps, consult a qualified appliance repair technician.
• When working with the drain pump, be prepared for water to spill. Have towels handy.

Tools You May Need

• Screwdrivers (Phillips and flathead)
• Pliers
• Flashlight
• Shallow pan or towels
• Straightened coat hanger or plumber’s snake

FAQ

• Q: Why is my washing machine making a grinding noise even after I cleaned the drain pump? A: There may be damage to the impeller within the drain pump housing. Even after removing the debris, a damaged impeller may be causing the noise.
• Q: How often should I clean the drain pump filter? A: It’s recommended to clean the drain pump filter every 1-3 months, depending on how frequently you use your washing machine.
• Q: Can I use a chemical drain cleaner in my washing machine? A: No, chemical drain cleaners can damage the washing machine’s components. It’s best to avoid them.
• Q: What if I can’t find the drain pump access panel? A: Consult your washing machine’s owner’s manual for specific instructions on locating the drain pump access panel.
• Q: How do I know if it’s the drain pump vs. something else? A: The noise being specific to the drain cycle is a strong indicator of a drain pump or drain system related issue. Other noises, like during the wash cycle, usually indicate other issues.
• Q: The grinding noise is intermittent, should I still be concerned? A: Yes. Intermittent noises can indicate a developing problem that will worsen over time. Addressing it early can prevent more costly repairs later.

Conclusion

Troubleshooting a grinding noise in your washing machine during the drain cycle can seem daunting, but often, it’s a simple fix involving cleaning the drain pump and hose. By following these steps, you can potentially save yourself the cost of a service call. However, if you’re not comfortable performing these repairs yourself, or if the problem persists, it’s always best to consult a qualified appliance repair technician. Don’t delay addressing the issue as it might lead to more damage or even complete failure of the machine.