Why Is My Washing Machine Not Draining?
A washing machine that won't drain is a common household problem. You finish a cycle and open the lid to find clothes sitting in a tub full of water. This guide explains the most common causes and what you can do to fix them before calling a technician.
Common Causes of a Washing Machine Not Draining
1. Clogged Drain Pump Filter
This is the most common cause, especially in front-load machines. The drain pump filter catches lint, coins, buttons and other small objects that come out of pockets. When it's clogged, the pump can't move water through. Fix: On most front-loaders, the pump filter is behind a small access panel near the bottom front of the machine. Place a tray and towels to catch water, then unscrew the filter cap slowly. Remove debris, rinse the filter, and screw it back in. Clean every 2–3 months as preventive maintenance.
2. Kinked or Blocked Drain Hose
The drain hose runs from the back of the machine to the standpipe or sink drain. If it's kinked, crushed behind the machine, or has a blockage, water can't escape. Fix: Pull the machine forward slightly and inspect the drain hose for kinks. If the hose looks clear, disconnect it and check for blockages. Run water through it. Also check the standpipe or sink drain for blockages.
3. Blocked Household Drain or Standpipe
Sometimes the problem isn't the machine at all — it's the household drain the machine empties into. If other drains in the laundry or nearby are also slow, a plumber may be needed. Fix: Check whether the standpipe or laundry tub drain drains freely. If not, use a drain cleaner or call a plumber.
4. Faulty Drain Pump
If the filter and hose are clear but the machine still won't drain, the drain pump motor may have failed. You may hear a humming noise during the drain cycle with no water movement, or no sound at all. Fix: This requires a technician. Drain pump replacements typically cost $150–$350 depending on the brand and model.
5. Lid Switch or Door Lock Fault (Top-Loaders)
Top-load washers won't spin or drain unless the lid switch is engaged. If the switch is faulty, the machine may stop mid-cycle with water in the drum. Fix: On some top-loaders you can manually actuate the lid switch by pressing it with a pen while the lid is up. If this triggers the spin/drain cycle, the switch needs replacement.
6. Faulty Control Board or Pump Relay
Electrical faults in the control board can prevent the drain cycle from triggering. This is less common but does occur in older machines. Fix: This requires a technician or appliance electrician.
Quick Checks Before Calling a Technician
- Clean the pump filter (front-loaders) — this fixes the majority of drain problems
- Inspect the drain hose for kinks
- Ensure the household standpipe/drain is clear
- Run a drain/spin-only cycle to isolate the issue
- Check whether an error code is displayed — refer to your manual
Preventing Drain Problems
- Always check pockets before washing — coins and tissues are major culprits
- Clean the pump filter every 2–3 months
- Don't overfill the machine — excess lint from overloading clogs the filter faster
- Use the correct amount of detergent — excess suds can confuse sensors
Time to Upgrade?
If your washing machine is over 10 years old and regularly causing problems, upgrading may be more economical than repeated repairs. Oceania Appliances stocks Samsung, LG, Fisher & Paykel and Electrolux washing machines. Visit our Wetherill Park showroom or contact us at support@oceaniaappliances.com.au.