Bosch Dishwasher E15 Error

Bosch dishwashers have a shallow tray in the base with a foam float and a switch. If water ever collects down there, the float rises, the switch trips, and the dishwasher posts E15 and stops washing to protect your floor and cabinets. It is a genuinely good safety feature. The catch is that E15 is a symptom: the real question is where the water in the base came from.

What E15 Is Protecting Against

The anti-flood system exists so a small internal leak does not become a kitchen flood. When it trips, the dishwasher often runs its drain pump continuously and refuses to start a cycle. That is by design. Simply resetting it without addressing the leak means it will trip again, usually mid-cycle.

Clearing It, and Finding the Cause

Turn the dishwasher off and shut its water supply. Let the water in the base drain out, either by carefully tilting the unit or soaking it with towels, which lowers the float and clears the code. Common leak sources include a worn door seal, a loose hose clamp, a cracked spray arm supply, or condensation from a spill. A technician traces the source and repairs it.

Cause of Water in Base	How It Shows	Our Fix
Worn door or tub seal	Recurring E15, damp door	Replace seal
Loose hose or clamp	E15 during fill or wash	Reseat or replace hose and clamp
Cracked supply or spray arm	E15 mid-cycle	Replace cracked component
Heavy condensation or spill	One-time E15	Dry base, verify no leak

What You Can Try, and Where to Stop

Draining the base and drying it will clear the code and, if the water was a one-time spill, may be the end of it. If E15 returns, there is an active leak that needs tracing and repair, which is a technician job with a warranty on the fix.

Frequently Asked Questions

What Does E15 Mean on a Bosch Dishwasher?

E15 means water has collected in the base of the dishwasher and lifted a foam float that trips an anti-flood safety switch. The machine stops washing and often runs the drain pump continuously to protect the home. The underlying cause is a leak or heavy condensation reaching the base tray.

How Do I Clear a Bosch E15 Error?

Turn off the dishwasher and shut its water supply. Carefully tip the unit back a little to let the water in the base drain out and lower the float, or soak it out with towels. That resets the switch, but unless the leak source is found and fixed, E15 will return.

Is a Bosch E15 Error Serious?

It is a safety code, so take it seriously. It usually points to a small internal leak that will keep tripping until it is repaired. Leaving water in the base risks damage, so shut the water off and book service to find and fix the leak rather than simply resetting.

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