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Bosch · Dishwasher · E02

Safe checks

A main-control-board relay fault was detected.

Diagnostic nodeE02SAFE-CHECKS
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Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: Bosch dishwashers using E02/E:02; model-specific diagnosis is required.

GUIDANCE

Safe checks for error E02

Start only with checks that do not require panel removal or live electrical testing. The verified sequence for E02 begins with: Switch the dishwasher off.; Reset the circuit breaker for 30 seconds.; If the display returns, keep the unit off and contact Bosch support..

Safe sequence

  1. 1Switch the dishwasher off.
  2. 2Reset the circuit breaker for 30 seconds.
  3. 3If the display returns, keep the unit off and contact Bosch support.

Stop and get qualified help when

  • E02 persists after one reset
  • The breaker trips or electrical odor is present
Primary sourceBosch — dishwasher error codes ↗Verified 2026-07-17 · manufacturer