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Bosch dishwasher

Bosch E15 error code: water in the base (aquastop)

Leak protection has detected water in the base tray.

DIY: moderateTypical repair: £70–£150.

Likely causes

  • Leak from the tub, hose or seal
  • Overfilling or foaming
  • Float stuck

How to fix E15

  1. Unplug the dishwasher (or switch off at the wall) for 5–10 minutes to clear any temporary fault, then restart it.
  2. Unplug and turn off water.
  3. Tip the dishwasher forward slightly to drain the base, or soak up water.
  4. Find and fix the leak.
  5. Run a short test cycle. If E15 returns, the fault is still there and an engineer should look at it.
Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.

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Frequently asked questions

What does Bosch error code E15 mean?

Leak protection has detected water in the base tray. On a Bosch dishwasher, E15 is shown as "water in the base (aquastop)".

How do I clear the E15 error on a Bosch dishwasher?

Switch the appliance off at the wall for 5–10 minutes, then restart. If E15 comes back, work through the checks on this page — the fault is real and needs fixing, not just resetting.

How much does it cost to fix Bosch E15?

£70–£150. is typical, depending on the part. Simple blockages cost nothing to clear yourself.

Does E15 mean the same on every Bosch model?

Not always. Codes are broadly consistent within a brand, but model ranges differ. Check your manual if the symptoms below don’t match.