Bosch dishwasher Flashing Sanitized Lights points to main control-board relay fault. Start with the safe checks that apply to this system and stop if the warning returns.
Bosch dishwasher Flashing Sanitized Lights points to main control-board relay fault. Start with the safe checks that apply to this system and stop if the warning returns.
Model compatibility: Bosch reuses codes across series and model years, so Bosch Dishwasher Flashing 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 Sanitized Lights is main control-board relay 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 dishwasher may stop before a cycle finishes
controls may respond inconsistently
the code may return shortly after power is restored
normal wash functions may be unavailable
Why it happens
Possible causes
main control-board circuit fault
relay or switching fault within the control path
wiring or connected-load condition that the board detects
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Photograph or write down the exact code before resetting anything.
If there is no burning smell, visible damage, or repeated breaker trip, switch the dishwasher off at the breaker for about 30 seconds as Bosch directs, then restore power once.
Do not remove the control module or probe internal wiring as a homeowner check.
Important safety warning. Leave the appliance off if there is a burning smell, smoke, sparking, or a breaker that trips again.
Get help
When to call a technician
If the code returns after the single power reset, the control circuit needs model-specific electrical diagnosis. Repeated resets do not identify which relay, board circuit, connection, or load created the fault. 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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