ErrorCodeDoctor
Bosch · Dishwasher

Bosch Dishwasher E02 / E03 / E0103 / E0107 error code

Difficulty: Hard · Cost: $100–$350 · Duration: Requires professional service

The E02, E03, E0103, or E0107 error means your Bosch dishwasher detected a fault in the main control board relay. Flip the breaker off for about thirty seconds, then back on to clear temporary glitches. If the error returns contact a qualified technician.

Common causes

  • Main control board relay has malfunctioned or failed
  • Temporary electronic fault in the relay circuit

How to fix it

  1. 1

    Flip the breaker off for about thirty seconds, then back on

  2. 2

    Turn the breaker back on and check if the error has cleared

  3. 3

    If the error returns contact a qualified technician

Related Bosch Dishwasher error codes

1

E01 / E0100

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

hard
2

E04 / E0105

Faulty heater electronics were detected during self-test

hard
3

E05 / E0106

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

hard
4

E06 / E8000

A door sensor circuit fault was detected

hard

E02 / E03 / E0103 / E0107 error — frequently asked questions

What does the E02 / E03 / E0103 / E0107 error mean on a Bosch dishwasher?

A main control board relay fault was detected

What causes the E02 / E03 / E0103 / E0107 error?

The E02 / E03 / E0103 / E0107 error is usually caused by: Main control board relay has malfunctioned or failed; Temporary electronic fault in the relay circuit.

Can I fix the E02 / E03 / E0103 / E0107 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 E02 / E03 / E0103 / E0107 error?

Fixing the E02 / E03 / E0103 / E0107 error on a Bosch dishwasher typically costs $100–$350, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dishwasher with the E02 / E03 / E0103 / E0107 error?

We'd recommend addressing the E02 / E03 / E0103 / E0107 error before continuing to use the dishwasher, since hard-rated issues often involve a real fault rather than a minor glitch.