Washing machine leaking from the bottom

Water appearing under a washing machine, especially only during certain parts of the cycle, points to a small number of likely causes — and most of them are the connections and hoses around the machine rather than a fault inside it.

The fill hoses and valves

The rubber washers inside the hose connectors that bring hot and cold water to the machine perish over years, and a slow weep at the connection point is one of the most common causes of water under a machine — often mistaken for the machine itself leaking when it is actually the supply hose. Check both connections at the wall valve and at the back of the machine.

The waste connection

If the drain hose has been pushed too far into the standpipe, it can siphon and push water back out rather than draining cleanly, especially during the spin cycle when flow is fastest. A waste connection without a proper trap and air gap is a common cause of intermittent leaks that seem to happen only sometimes. See our page on washing machine plumbing for how this should be set up properly.

The door seal

On a front-loader, a perished or torn door seal lets water escape during the wash itself, usually visible as water specifically around the door rather than underneath at the back. This is a machine repair rather than a plumbing one, and is worth ruling out before assuming the connections are at fault.

Only during the spin cycle

A leak that only appears during a fast spin, and not during filling or a gentle wash, points more specifically at the waste connection or a drum bearing issue than at the supply side — worth mentioning specifically when describing the fault to whoever comes to look at it.

If the floor drains slowly as well

Water pooling near the machine that does not clear on its own can also be a nearby floor gully or waste run struggling to keep up rather than the machine at all — worth ruling out with a look at drain unblocking if the puddle keeps returning even once the machine itself checks out fine.

Turn off the valves if you are waiting for someone to look at it

The isolation valves behind the machine are the one thing standing between mains pressure and your kitchen floor. If a leak is ongoing and cannot be immediately identified, turning both valves off stops it getting worse while it is looked at properly — the same valves covered on our general plumbing page.