Bosch Dishwasher E09 — Heating Element Fault
Bosch Dishwasher · Error code E09
What E09 Means
E09 means the flow-through heating element circuit faulted — the dishwasher cannot heat the water, affecting wash and dry performance.
Most Likely Fix
Heating element open / no heat
Tools: screwdriver, nut driver, pliers, multimeter
Diagnose first: Heater element open-circuit; on newer Bosch units the heater is part of the circulation pump housing.
Find this part on Amazon →If the primary fix doesn't resolve it:
Symptoms
- Dishes come out cold and wet
- Poor cleaning
- E09 on the display
Common Causes
The flow-through heater (part of the circulation pump on many Bosch models) has failed.
Less commonly, the board that drives the heater.
How to Fix It
- Power-cycle at the breaker to rule out a glitch.
- If E09 returns, the heater (often integrated with the circulation pump) needs testing/replacement.
- This is an advanced repair — consider a technician.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
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Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.