Washing machine leaking? Here’s what it usually means
Guidance last checked on against UK safety regulation and the sources behind our service pages.
Where the water appears tells you most of the story: front and door — seal or detergent drawer; underneath during fill — supply hose or valve; underneath during drain — pump, sump hose or a blocked filter; behind the machine — the standpipe or waste connection. Stop using it and turn off its water valve until you know which — or the main stopcock, if the valve is seized or you can't get behind the machine.
Likely causes
- Door seal (front leaks)
- The rubber gasket perishes, or trapped debris (a stray hair grip is a classic) cuts it. Visible splits or black mould embedded in the fold usually mean replacement — a routine repair.
- Blocked filter or sump (drain-cycle leaks)
- The pump filter behind the little front hatch catches coins and lint; when clogged, water finds other ways out. Cleaning it is a 10-minute DIY job — with towels ready.
- Supply hoses and valves (fill leaks)
- Hose washers harden with age; connections work loose with vibration. If the hose itself bulges, replace it before it bursts — a burst supply hose can flood a kitchen in minutes.
- Detergent drawer overflow
- Blocked drawer jets or too much powder make water back out of the drawer front. Clean the drawer and housing; use less detergent than you think you need.
What not to do
- Don't run another cycle 'to check' — water under a machine finds floorboards and the ceiling below
- Don't reach for the plug or the wall switch once water has got near the socket — wet hands on a live switch is how a leak becomes a shock. Kill that circuit at the consumer unit first, then deal with the water
- Don't drag the machine out over a wet floor on your own — they're heavier than they look
When to request help
After you've cleaned the filter and checked the hose connections: if it still leaks, or the leak involves the door seal or underneath during wash, book an appliance engineer. Same-day if you can't isolate the water supply.
Related questions
Is a leaking machine worth repairing?
General guidance, not a substitute for an on-site professional assessment — and never for the gas emergency line (0800 111 999) if you smell gas.