Netspresso

Why Is My Nespresso Leaking Water? Causes and Fixes

Researched by Netspresso Editorial · Published Oct 7, 2026

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A Nespresso that's leaking water is most often a water-tank or drip-tray problem, not a broken machine. The tank isn't seated properly, the drip tray has overflowed, or scale and a tired seal are letting water escape the circuit. All of these are quick to check at home, and only the last one occasionally needs a part or a repair. Work through them from the most common down.

1. Reseat and inspect the water tank

The single most common cause of a "leak" is a water tank that isn't sealing against the machine:

  • Remove the tank, wipe the base of the machine dry, and reseat the tank firmly until it clicks fully into place. A tank that's slightly off its valve lets water trickle down the back and pool underneath.
  • Check the tank itself for cracks, especially around the base and the valve. A hairline fracture causes a slow, persistent leak that's easy to miss.
  • Make sure the tank's lid and any internal tube aren't kinked or dislodged.

2. Empty the drip tray

A puddle under the machine is often just an overflowed drip tray, not a leak at all. Slide the tray out, empty it, rinse it, and dry the surface underneath. If the puddle doesn't return after a brew, that was the whole problem.

3. Descale — scale blocks the water path

If the tank and tray check out, limescale is the next suspect. Mineral buildup narrows and partially blocks the internal water channels, which raises pressure and forces water out of seals and joints it wouldn't normally escape. Running a descaling cycle clears the buildup and often stops a mystery leak.

Use a citric-acid descaler, not vinegar, and follow the steps for your model in our guide to how to descale a Nespresso machine. If you're not sure how often you should be descaling, our descaling frequency calculator gives you an interval based on your water hardness and usage.

4. Check the capsule gasket

Open the machine head, remove any capsule, and look at the silicone gasket where the capsule seats. If it's dry, dirty, or dislodged, water can escape during brewing. Clean it gently and make sure it's seated correctly. On Vertuo machines, confirm the head closes and locks fully — an incomplete lock can let water out around the capsule.

5. When it's internal

If you've reseated the tank, emptied the tray, descaled, and checked the gasket and the machine still leaks, the cause may be a cracked internal tube or a failed reservoir seal — a repair rather than a home fix. If the machine is under warranty, contact Nespresso support before opening anything, since self-repairs can void coverage.

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