Search

Home › Bosch › Dishwashers › E09

Bosch Dishwasher E09 Error Code

Heating fault (meaning varies by region). What it means, which models show it, and how to clear it, easiest fix first.

BoschAll Bosch dishwasher codes

E09
May need a pro

E09 points to a heating problem, but Bosch describes it differently by region. Bosch US lists it as a fault in the heat pump's built-in heater, while Bosch UK says the heating element is defective.

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

US: E09 = heat pump internal heater fault; newer US models show E2030 or E6001, and Bosch US gives E20 the same description. UK/EU: E09 = heating element defective; Bosch UK notes that if the salt light is also on, a dirty salt sensor can be involved. Some regions show it as F09. Check your manual for your model.

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 E09

  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. Check the salt sensor (UK and EU models)

    If the salt light is on along with E09, top up the dishwasher salt and make sure the salt reservoir area is clean. Bosch UK notes a dirty salt sensor can wrongly report that salt is needed.

  3. Turn off water and power if it returns

    If E09 comes back, close the water supply and switch the dishwasher off at the breaker until a technician has looked at it. Bosch advises against repairing heating faults yourself.

When to call a technician

Book a Bosch engineer or qualified technician. Heater and heat pump repairs involve live electrical parts and are not a DIY job.

Parts linked to E09

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 E09 mean on a Bosch dishwasher?

E09 points to a heating problem, but Bosch describes it differently by region. Bosch US lists it as a fault in the heat pump's built-in heater, while Bosch UK says the heating element is defective.

Which Bosch models show the E09 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 E09 myself?

Only the basic checks. You can safely try the steps above, but E09 usually points to a part or fault that needs a technician.

What if E09 keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when E09 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