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Bosch · Dishwasher · E02

When a technician is needed

A main-control-board relay fault was detected.

Diagnostic nodeE02TECHNICIAN
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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

When a technician is needed for error E02

Qualified help is appropriate when E02 persists after one reset; The breaker trips or electrical odor is present. Do not bypass sensors or energize an opened appliance.

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