Bosch Dishwasher E09 Error Code

Meaning: The heating element or heating circuit has failed. The dishwasher cannot heat water to the required temperature for the selected cycle.

Risk: Medium–High. Not an immediate safety hazard, but the dishwasher cannot wash or dry effectively without heating. Do not attempt to access or test the heating element yourself.

First safe checks:

Turn off the dishwasher at the breaker for at least 30 seconds, then restore power.
Run a hot cycle to see if E09 returns.
Check whether dishes are coming out cold and still dirty (confirms heating failure).

Call a technician if:

E09 returns after a power reset.
Dishes come out cold on any cycle.
You see any burn marks or smell burning near the dishwasher.

Common causes

Burnt-out heating element
Control board not supplying power to the heater
Faulty solder joint on heater relay (control board)
Dirty or faulty salt sensor sending incorrect signals

Can you reset it?

Yes, with conditions. A power reset (breaker off for 30 seconds) may clear a transient fault. If E09 returns on the next cycle, the heating element or control board likely needs replacement.

Safe checks before calling a technician

Turn off the dishwasher at the breaker for at least 30 seconds, then restore power.
Run a hot cycle to see if E09 returns.
Check whether dishes are coming out cold and still dirty (confirms heating failure).
If you use a water softener salt compartment, check that the salt sensor area is clean — a dirty salt sensor can sometimes send incorrect signals that trigger E09.

When to call a technician

E09 returns after a power reset.
Dishes come out cold on any cycle.
You see any burn marks or smell burning near the dishwasher.
The heating element, control board, or any electrical component needs testing or replacement.

Related Bosch dishwasher codes

E01 — Control board fault

Source confidence

Medium Last reviewed: 2026-06-05

Official Bosch snippet confirms E09 as heating-related ('reset power to breaker for 30 seconds'). Detailed cause breakdown from secondary sources. Consistent across references.

FAQ

What does Bosch dishwasher E09 mean?

E09 means the dishwasher's heating element or heating circuit has a fault. The machine cannot heat water properly.

Can I still use the dishwasher with E09?

The dishwasher may run but will not heat water, resulting in poor wash and dry performance. A technician should diagnose and repair before continued use.

How much does it cost to fix Bosch dishwasher E09?

Heating element replacement typically ranges from $150-$350 including labor, depending on the model. Control board replacement costs more.