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Bosch · Dishwasher · E02

If the code returns

A main-control-board relay fault was detected.

Diagnostic nodeE02RECURRING-CODE
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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

If the code returns for error E02

If E02 returns after an accessible check, do not keep resetting the appliance. Record when it appears, stop at any unsafe condition, and use the model-specific service path.

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