You open the door at the end of the wash cycle and find the drum full of water, or the washing machine stops halfway through the cycle with soaking wet laundry inside. This happens more often than you think and is almost never a serious fault. In most cases, something is blocking the drain, and many times you can fix it yourself in half an hour without calling anyone. Let’s look at the causes and what to check in order.
How the washing machine drains
At the end of the cycle, a pump pushes water from the drum to the drain pipe, which leads to the house’s main drain. Along this path, there is a filter that stops coins, buttons, and hair, and a pipe that must remain clear. If the pump struggles, the filter is clogged, or the pipe is bent or blocked, the water cannot exit and stays inside. Knowing the route helps understand where to look.
The most common causes
- Clogged pump filter. This is the number one cause. It fills with lint, hair, coins, and small objects left in pockets.
- Bent or blocked drain hose. A tight bend behind the machine or a clog of limescale and residue blocks the flow.
- Faulty drain pump. If you hear a buzzing but the water doesn’t drain, the pump impeller may be stuck or broken.
- Blocked wall drain. Sometimes the problem isn’t the washing machine but the house’s drainage pipe is clogged.
- Program or electronic lock. An interrupted cycle or a control board error can stop the draining phase.
What to check yourself, in order
First, unplug the machine and turn off the water tap. Then proceed calmly.
- Drain by hand if necessary. Place a cloth and a shallow basin under the filter door at the bottom, as water will come out.
- Clean the filter. Unscrew the filter cap, remove everything you find, rinse it, and screw it back on properly. This solves most cases.
- Check the drain hose. Pull it out from behind the machine, straighten any bends, and check that it’s not blocked by blowing into it or running water through it.
- Restart a spin cycle. If you have cleared everything, run a spin cycle to see if the water drains.
When to call a technician
If you have cleaned the filter and hose and the water remains inside, the problem is deeper. A burnt drain pump, a faulty electronic board, or an internal leak are not DIY jobs. The same applies if you smell burning plastic or if the machine trips the circuit breaker: in that case, unplug everything and call a technician, because continuing could worsen the fault and become dangerous.
How to prevent it from happening again
Prevention is simple but almost no one does it. Empty your pockets before washing so coins and tissues don’t end up in the filter. Clean the pump filter every two or three months; it only takes five minutes. Occasionally check that the hose behind the machine hasn’t bent by pushing the washer against the wall. If your machine is old and often gets stuck, consider our appliance section, where you’ll find recent models with easy-to-clean front filters and error notifications on the display.
Frequently Asked Questions
Can I open the washing machine if it’s full of water?
Many models lock the door while there is water inside for safety. First, drain the water through the pump filter at the bottom by placing a basin underneath. Once the water has drained, the door will unlock automatically.
How much does it cost to repair a washing machine that won’t drain?
If it’s just the filter or hose, you can fix it yourself at no cost. If the drain pump needs replacing, the cost starts from a few tens of euros plus labor, but it remains a relatively inexpensive repair compared to the machine’s value.
Why does the washing machine buzz but not drain water?
Almost always, the pump impeller is blocked by an object or lint, so the motor runs empty. Check and clean the pump filter. If the buzzing continues with a clean filter, the pump probably needs to be replaced.