When a Bosch dishwasher shows E6900, the control has detected detergent-dispenser solenoid circuit fault. The code narrows the diagnostic path but does not identify every cause by itself.
When a Bosch dishwasher shows E6900, the control has detected detergent-dispenser solenoid circuit 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 E6900 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 E6900 is detergent-dispenser solenoid circuit 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
the detergent door may not release normally
the cycle can continue with poor detergent delivery
the code may appear during or after the wash phase
a power reset may not prevent the warning from returning
Why it happens
Possible causes
detergent-dispenser solenoid fault
dispenser wiring fault
main-control switching fault for the dispenser circuit
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Record the code and model number.
Check only that no dish or utensil is physically blocking the dispenser door from the outside.
Where Bosch specifies it, perform one normal breaker reset.
Do not energize or test the solenoid directly.
Important safety warning. Stop for burning odor, smoke, or visible electrical damage.
Get help
When to call a technician
A returning code needs testing of the dispenser actuator, wiring, and control circuit for the exact model. 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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