Bosch Dishwasher Flashing Active + Sanitized Lights Error Code
When a Bosch dishwasher shows Flashing Active + Sanitized Lights, the control has detected internal heat-pump heater fault. The code narrows the diagnostic path but does not identify every cause by itself.
When a Bosch dishwasher shows Flashing Active + Sanitized Lights, the control has detected internal heat-pump 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 Bosch Dishwasher Flashing Active + Sanitized Lights Error Code 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 Flashing Active + Sanitized Lights is internal heat-pump 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
water may not heat as expected
drying performance can change
the cycle may pause or end early
the code can return after a restart
Why it happens
Possible causes
heater or heat-pump heating fault
temperature/heating control fault
wiring or electronic switching fault in the heating path
Important safety warning. Keep the dishwasher off if there is overheating, electrical odor, smoke, or repeated power interruption.
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