When a Bosch dishwasher shows E10, the control has detected zeolite / crystaldry chamber heater fault. The code narrows the diagnostic path but does not identify every cause by itself.
When a Bosch dishwasher shows E10, the control has detected zeolite / crystaldry chamber heater fault. The code narrows the diagnostic path but does not identify every cause by itself.
Model compatibility: Bosch reuses codes across series and model years, so E10 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The verified Bosch meaning for E10 is zeolite / crystaldry chamber heater fault. Treat that wording as the technical anchor for this page. The displayed code narrows the system that needs attention, but the complete E-Nr and observed behavior are still important before a repair decision is made.
Signs
Symptoms you may notice
CrystalDry performance may be reduced
the dishwasher may interrupt a program
dishes may finish wetter than usual
the code may remain after a normal restart
Why it happens
Possible causes
CrystalDry chamber heating fault
wiring or control fault for the Zeolite heating path
model-specific temperature/heater fault
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Save the exact code and model number.
A single normal power reset may be used where Bosch specifies it.
Do not open the Zeolite chamber or attempt internal heater testing.
Important safety warning. Stop use if you notice overheating, burning odor, smoke, or electrical damage.
Get help
When to call a technician
A returning code requires diagnosis of the CrystalDry heating circuit and its model-specific controls. When requesting service, include the complete Bosch model/E-Nr. Similar-looking dishwashers can use different controls, pumps, drying systems, and diagnostic logic.
Seeing this code on your Bosch appliance?
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