Finding water from under your washing machine stops you in your tracks. One minute the wash is running normally, the next there is a puddle spreading across the floor.
Most leaks have a small number of causes, and the puddle itself gives the game away. Where and when the water appears narrows the list fast.
First: Stop the Water and the Power
Before you inspect anything, make the area safe — water and electricity are a dangerous combination.
- Turn off the water supply. Close the hot and cold taps behind the machine, or the mains stopcock.
- Unplug the machine. Switch it off at the wall and pull the plug out. Do not touch the plug with wet hands.
- Do not run another cycle to “see what happens.” A leaking machine can flood the floor and damage its motor.
- Mop up and take note. Before mopping, note where the water is: front, back, middle, or spread evenly underneath. The location is your biggest clue.
How to Find Where the Leak Is Coming From
Check when the leak happens
A leak during filling usually means the inlet hoses or inlet valve. A leak during the wash often means the door seal, the detergent drawer or an internal hose. A leak during drain or spin usually means the drain pump, the drain hose or the tub seal. A leak that appears when the machine has not run for hours points to the supply side — a hose or inlet valve dripping under mains pressure.
Look at the back and front
Pull the machine out a few centimetres, without straining the hoses. Check both inlet hoses where they meet the wall taps and the back of the machine, looking for drips, damp patches, bulges or cracks. Check the drain hose sits securely in the standpipe, not kinked or crushed against the wall. On a front-loader, check the rubber door seal for tears and trapped coins, and pull out the detergent drawer to check for blocked holes. A loose pump filter cap behind the small panel near the base is another common cause of a puddle at the front corner.
Use the paper towel test
Dry the floor, then lay dry paper towels under the front, middle and back of the machine and run a short test cycle — rinse-and-spin or drain-only is enough. The towel that darkens first tells you where the water comes from, even when the drip is hidden. If the back and front are both dry, the leak is probably inside the cabinet: a split tub-to-pump hose, a cracked pump housing, or a worn tub seal.
7 Common Causes of Water From Under a Washing Machine
1. Loose, cracked or worn inlet hoses
The two fill hoses carry mains-pressure water, so even a small fault can release a lot of water fast. Rubber hoses harden and crack with age, and the washers inside the couplings dry out. Tighten loose couplings by hand, and replace any hose that is bulging or cracked.
2. Drain hose problems
The drain hose slips out of the standpipe during spin, gets kinked when the machine is pushed too close to the wall, or splits where it rubs against a sharp edge. A blocked standpipe can also back up and overflow, which looks like a machine leak but is a plumbing problem. Reposition a slipped hose and replace a split one.
3. A damaged or dirty door seal
On front-loaders, the rubber door seal keeps water inside the drum. Its folds trap lint, hair and coins, which can hold the seal slightly open and let water escape at the bottom of the door. Wipe the seal clean and check for tears. A torn seal usually needs replacing, so many owners leave it to a technician.
4. Too much detergent or a blocked drawer
Too much detergent creates excess suds that overflow and appear as water leaking from the dispenser drawer, the door seal or the base of the machine. A drawer clogged with dried detergent has the same effect. Most households use roughly twice as much detergent as they need.
5. A leaking or blocked drain pump and filter
The drain pump sits at the bottom of the machine and pushes water out through the drain hose. Over time its bearings wear, its housing can crack, and its shaft seal can weep, typically only during drain and spin. A clogged filter has a similar effect: blocked with lint or coins, water backs up and spills from the bottom. Clean the filter every one to three months.
6. A split tub-to-pump hose
Inside the machine, a short hose connects the outer tub to the drain pump. It hardens with age and can split at a bend or a clamp, and because it sits low in the cabinet, its water pools directly underneath. Replacing it means opening the cabinet, so it is usually a technician job.
7. A worn tub seal or cracked outer tub
The main tub seal sits where the drum shaft passes through the outer tub and keeps water out of the bearings. When it fails, water leaks from under the centre of the machine, usually only during spin, often with a loud roaring noise. A crack in the outer tub causes a similar slow leak. Both are expensive repairs on an older machine.
DIY Fixes vs When to Call a Technician
- Safe DIY: tightening a loose hose coupling, replacing an inlet or drain hose, reseating a slipped drain hose, cleaning the pump filter and door seal, using less detergent, and levelling the machine.
- Call a technician: any leak from inside the cabinet, a cracked pump housing, a split tub-to-pump hose, a torn door seal, or a tub seal or bearing failure.
- Consider replacing the machine: if the tub is cracked or the repair quote is close to the cost of a replacement.
If your machine has stopped working as well as leaking, start with our guide to a washing machine not working, and if it will not start at all, see why your washer won’t turn on. For drainage problems, see why your washing machine won’t drain, and for spin problems, washing machine not spinning correctly and washer spins but won’t agitate.
What If the Machine Leaks When It Is Not Running?
A leak while the machine sits idle narrows things down, because the motor, pump and drum are not working — so overloading, too much detergent and the spin cycle can all be ruled out. What is left is anything under pressure between washes: a fill hose dripping under mains pressure, an inlet valve not closing fully, or a drain hose letting water flow back in. Turn the taps off overnight: if the leak stops, it is a supply-side problem.
How to Prevent Washing Machine Leaks
- Check the hoses every six months and replace rubber inlet hoses every three to five years.
- Clean the pump filter every one to three months, and check the door seal and drawer too.
- Use the right amount of detergent and run a hot maintenance wash once a month.
- Do not overload the machine. Leave a hand’s width of space at the top of the drum.
- Keep the machine level — an unlevel machine vibrates more and shakes hoses loose.
- Leave the door and drawer slightly open between washes so they dry out — this also helps prevent the musty smell covered in our guide to a bad smell from your washing machine.
Frequently Asked Questions
Why is there water under my washing machine?
The most common causes are a loose or cracked inlet hose, a slipped or split drain hose, a leaking drain pump, a damaged door seal, or a blocked pump filter.
Is it safe to use a washing machine that is leaking from underneath?
No — stop using it until you know the cause. Turn off the water taps and unplug the machine first. Water near a plugged-in appliance can cause electric shock.
Can I fix a leaking washing machine myself?
Often, yes, if the cause is external: tightening or replacing a hose, reseating the drain hose, or cleaning the pump filter. Internal leaks need a technician.
Why does my washing machine leak only during the spin cycle?
A leak only during spin usually points to the drain pump or the tub seal. The pump works hardest during drain and spin, so a worn pump seal shows up then. A failing tub seal also leaks mainly during spin, often with a loud roaring noise from the bearings.
How much does it cost to fix a washing machine leaking from underneath?
It depends on the cause. A replacement hose or a filter clean costs very little, and a new drain pump is a moderate repair. A tub seal and bearing replacement is one of the most expensive repairs.
Conclusion
Water from under your washing machine is alarming, but it is rarely a mystery once you know what to look for. Make it safe first — water off, power off — then use the timing and location of the puddle to narrow it down. Hoses and the drain are the first suspects, then the door seal and drawer, then the pump and tub seal.
Many common causes are quick, cheap fixes: a tightened fitting, a new hose, a cleaned filter, or simply less detergent. For the internal ones, a technician’s diagnosis is money well spent. Caught early, it is a hose; left alone, it is a floor.