Bosch Dishwasher E15 Error Code

Meaning: The leak protection system (AquaStop) has detected water in the base of the dishwasher. The safety float switch is activated, shutting down the appliance to prevent water damage.

Risk: Medium–High. Do not keep running the dishwasher if E15 returns after reset. Active water in the base can cause floor or cabinet damage.

First safe checks:

Turn the dishwasher off at the breaker and close the water supply valve under the sink.
Check for visible water around or under the machine.
Carefully tilt the dishwasher slightly forward (about 30-45 degrees) onto towels to drain trapped water from the base.

Call a technician if:

Water is visible under or around the unit after drying.
The error returns after a successful reset.
The appliance trips a breaker.

Common causes

Leak into the base tray (hose connection, door seal, spray arm)
Over-sudsing from wrong detergent type or amount
Drain pump or sump seal failure
Float switch triggered by condensation buildup
Internal hose or gasket leak

Can you reset it?

Yes, with conditions. Reset only works when the base pan is dry and the float switch has dropped back down. Unplug for at least 5 minutes. If E15 returns after reset, there is likely an active leak.

Safe checks before calling a technician

Turn the dishwasher off at the breaker and close the water supply valve under the sink.
Check for visible water around or under the machine.
Carefully tilt the dishwasher slightly forward (about 30-45 degrees) onto towels to drain trapped water from the base.
After drying, unplug for at least 5 minutes, then restore power.
Do not use excessive detergent — over-sudsing is a common trigger.

When to call a technician

Water is visible under or around the unit after drying.
The error returns after a successful reset.
The appliance trips a breaker.
You would need to remove panels or access internal parts to find the leak source.

Related Bosch dishwasher codes

Source confidence

High Last reviewed: 2026-06-05

Official Bosch US support page confirms meaning (AquaStop/leak protection). Multiple secondary sources consistent on reset procedure and causes.

FAQ

What does Bosch dishwasher E15 mean?

E15 means the AquaStop leak protection system detected water in the base of the dishwasher and shut it down to prevent damage.

How do I reset Bosch dishwasher E15?

Turn off power and water, drain any water from the base by tilting the unit forward onto towels, let the base dry completely, then unplug for at least 5 minutes before restoring power.

Is Bosch E15 a leak?

E15 means the dishwasher detected water where it should not be. It may be a genuine leak, or it may be triggered by over-sudsing or condensation. If E15 returns after reset, assume a real leak.

Can I keep using the dishwasher with E15?

No. The dishwasher will not run while E15 is active. Do not attempt to bypass the safety system.