Bosch dishwashers use E-prefix codes displayed on the control panel or through blinking LED patterns on models without a digital readout. The most common — E15 (leak detected in the base), E24 (drain blockage), and E09 (heating element fault) — account for roughly 70% of service calls.
Before scheduling a technician, check the drain filter and hose for kinks. A clogged filter triggers E24 in most cases and takes two minutes to clear. E15 often resolves after tilting the unit forward to drain residual water from the base tray, then running a reset cycle.
Codes like E01, E02, and E27 point to control-board or sensor failures that require professional diagnosis. Operating the dishwasher with these active risks secondary damage to the wash motor or wiring harness. Our dishwasher repair service covers every model across all 50 US states.