Customer Questions and Answers for Control Unit (Main Electronic Control Board) by Bosch

This control unit is the dishwasher's main electronic control board that manages cycles, timing, and user commands so the appliance runs the selected wash programs reliably. Replace a failed board to restore normal control operation. What it does

• Receives input from the touchpad/controls and starts or stops wash cycles
• Manages cycle timing, valves, pumps and heater signals according to selected program
• Communicates error conditions to the display or control indicators
• Common symptoms: unresponsive controls, display errors, cycles that won't start or complete

• Disconnect power at the breaker or unplug the appliance before service
• Handle the board by edges and avoid static discharge (use an anti-static wrist strap if available)
• Verify connectors seat fully and match original wiring; do not force connections