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Error E15 Stops machine US market

Bosch Dishwasher Error Code E15

E15 on a Bosch dishwasher usually means: The safety switch has detected water in the base of the dishwasher. On a Bosch Dishwasher, code E15 points to the leak sensor.

Fix it fast: Drain the base pan and reset. Full ranked steps below.

Likely part
leak sensor
Fault type
leakage
Manufacturer source Updated Oct 17, 2026 View source

How to fix E15 — ranked steps

Try these in order. Stop when the code clears.

  1. 1 Drain the base pan and reset

    Moderate
    • Cut power and water, tilt the unit back to empty the base tray, mop up remaining water, then restore power and run a short rinse to confirm the float switch reset.
    • Also verify dishwasher-only detergent at the recommended dose.
    Source

  2. 2 Have the leak traced professionally

    Pro only
    • If the code returns after draining, have a technician inspect internal hoses, the door seal, and the sump for leaks and replace the failed component.
    Source

Other Bosch Dishwasher codes

E3100Stops machine

The safety switch has detected water in the base of the dishwasher. On a Bosch Dishwasher, code E3100 points to the leak sensor.

E01Stops machine

There is a heat pump motor circuit fault at the main control board. On a Bosch Dishwasher, code E01 points to the drive motor.

E02Degraded

There is a main control board relay fault/error. On a Bosch Dishwasher, code E02 points to the control board.

E03Degraded

There is a main control board relay fault/error. On a Bosch Dishwasher, code E03 points to the control board.

E05Degraded

There is a wash arm diverter circuit in main control board fault/error. On a Bosch Dishwasher, code E05 points to the control board.

E09Degraded

There is a heat pump internal heater fault/error. On a Bosch Dishwasher, code E09 points to the sensor.

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