ErrorCodeDoctor
Bosch · Dishwasher

Bosch Dishwasher E15 / E3100 / Flashing Active Lights error code

Difficulty: Hard · Cost: $80–$300 · Duration: Requires professional service

The E15, E3100, or flashing Active lights error means your Bosch dishwasher's safety switch detected water in the base pan — the AquaStop or leakage protection system has been activated. Turn off the water supply immediately and do not continue using the dishwasher. Contact a qualified technician for assistance.

Common causes

  • Water has leaked into the base pan of the dishwasher
  • Internal hose or connection is leaking
  • AquaStop leakage protection triggered due to detected moisture

How to fix it

  1. 1

    Turn off the water supply tap immediately

  2. 2

    Do not use the dishwasher

  3. 3

    Contact a qualified technician for assistance

Related Bosch Dishwasher error codes

1

E01 / E0100

A heat pump motor circuit fault was detected at the main control board

hard
2

E02 / E03 / E0103 / E0107

A main control board relay fault was detected

hard
3

E04 / E0105

Faulty heater electronics were detected during self-test

hard
4

E05 / E0106

A wash arm diverter circuit fault was detected at the main control board

hard

E15 / E3100 / Flashing Active Lights error — frequently asked questions

What does the E15 / E3100 / Flashing Active Lights error mean on a Bosch dishwasher?

Water was detected in the base of the dishwasher — leakage protection activated

What causes the E15 / E3100 / Flashing Active Lights error?

The E15 / E3100 / Flashing Active Lights error is usually caused by: Water has leaked into the base pan of the dishwasher; Internal hose or connection is leaking; AquaStop leakage protection triggered due to detected moisture.

Can I fix the E15 / E3100 / Flashing Active Lights error myself?

This is rated a hard fix — it often requires tools, parts, or experience, and may be safer left to a professional technician.

How much does it cost to fix the E15 / E3100 / Flashing Active Lights error?

Fixing the E15 / E3100 / Flashing Active Lights error on a Bosch dishwasher typically costs $80–$300, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dishwasher with the E15 / E3100 / Flashing Active Lights error?

We'd recommend addressing the E15 / E3100 / Flashing Active Lights error before continuing to use the dishwasher, since hard-rated issues often involve a real fault rather than a minor glitch.