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Bosch Dishwasher E01-E05 Error Code

Control board or electronics fault. What it means, which models show it, and how to clear it, easiest fix first.

BoschAll Bosch dishwasher codes

E01-E05
May need a pro

The main control board has found a fault in one of its own circuits, such as a relay, the heat pump motor circuit, the heater electronics, or the wash arm diverter circuit. These are electronic faults rather than something you can clean or adjust.

Compatible models

Bosch doesn't publish a model list for this code; it appears on Bosch dishwashers with a digital display. Check your owner's manual.

Also shown as

Bosch US: E01 = heat pump motor circuit, E02 and E03 = relay fault, E04 = heater electronics, E05 = wash arm diverter circuit. Newer US models show E0100 (as E01), E0103 or E0107 (relay, as E02/E03), E0105 (as E04), and E0106 (as E05). E0110 is a separate newer code for a communication fault between the electronics, handled the same way. European guides list E01 to E05 as technical faults.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Safety first: unplug the dishwasher (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Bosch E01-E05

  1. Reset the dishwasher at the breaker

    Switch off the dishwasher's circuit breaker, wait about 30 seconds, then switch it back on. Run a short cycle with the dishwasher empty and watch whether the same code comes back. A code that clears and stays away was likely a one-time glitch.

  2. Write down the code and model number

    Note the exact code and find the model (E-Nr) and production (FD) numbers on the rating label, usually on the edge of the door. Bosch support or a technician will ask for both, because those numbers show which version of the code your machine uses.

When to call a technician

If the code comes back after a reset, or you see E04 / E0105 / E0110, contact Bosch support or a technician. Never open the control board yourself.

Parts linked to E01-E05

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does E01-E05 mean on a Bosch dishwasher?

The main control board has found a fault in one of its own circuits, such as a relay, the heat pump motor circuit, the heater electronics, or the wash arm diverter circuit. These are electronic faults rather than something you can clean or adjust.

Which Bosch models show the E01-E05 code?

Bosch doesn't publish a model list for this code; it appears on Bosch dishwashers with a digital display. Check your owner's manual.

Can I fix Bosch E01-E05 myself?

Only the basic checks. You can safely try the steps above, but E01-E05 usually points to a part or fault that needs a technician.

What if E01-E05 keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when E01-E05 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Other Bosch dishwasher codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked