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Bosch · Dishwasher · E02

Related error codes

A main-control-board relay fault was detected.

Diagnostic nodeE02RELATED-CODES
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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

Related error codes for error E02

Compare this entry with nearby Bosch and dishwasher codes, but never substitute one code definition for another. The exact display and model family control the diagnosis.

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