ErrorCodeDoctor
Bosch · Dishwasher

Bosch Dishwasher E10 / E2120 error code

Difficulty: Hard · Cost: $100–$300 · Duration: Requires professional service

The E10 or E2120 error means your Bosch dishwasher detected a fault with the Zeolite (Crystal Dry) chamber heater on CrystalDry models. Flip the breaker off for about thirty seconds, then back on. If the error returns contact a qualified technician.

Common causes

  • Zeolite Crystal Dry chamber heater has malfunctioned or failed

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

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

E10 / E2120 error — frequently asked questions

What does the E10 / E2120 error mean on a Bosch dishwasher?

A Zeolite Crystal Dry chamber heater fault was detected

What causes the E10 / E2120 error?

The E10 / E2120 error is usually caused by: Zeolite Crystal Dry chamber heater has malfunctioned or failed.

Can I fix the E10 / E2120 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 E10 / E2120 error?

Fixing the E10 / E2120 error on a Bosch dishwasher typically costs $100–$300, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dishwasher with the E10 / E2120 error?

We'd recommend addressing the E10 / E2120 error before continuing to use the dishwasher, since hard-rated issues often involve a real fault rather than a minor glitch.