BOSCH 500 SERIES DISHWASHER Flashing

Door Latch Assembly

The flashing InfoLight is a visual error code signifying that the control module detects an open circuit at the door interface during a wash attempt. The latch assembly contains a microswitch that must remain closed to authorize operation; mechanical wear in the latch housing or internal switch prevents the door from staying securely seated against the tub seal. Replacing this component restores the electromechanical feedback loop required for the dishwasher to maintain its 'Active' state.

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Door Strike Plate

The strike plate is the stationary component that the latch hooks into; if it is bent or misaligned, the latch will not reach the depth required to depress the internal microswitch. This prevents the dishwasher from recognizing the door as closed, triggering the flashing floor light alert. This is the most common mechanical (non-electrical) fix for door sensing issues.

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Door Seal (Gasket)

An improperly seated or deformed door gasket can create excessive outward pressure (kick-back) against the door panel. This pressure can overcome the latch's holding force, causing the door to 'pop' out just enough to break the electrical connection at the latch switch while appearing visually closed. A new gasket ensures the door can fully close without forcing the latch to work against high mechanical resistance.

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