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Bosch · Dishwasher · E27

If the code returns

The electrical supply voltage is too low.

Diagnostic nodeE27RECURRING-CODE
!
Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: Bosch dishwashers that use E27/E:27; regional voltage thresholds differ.

GUIDANCE

If the code returns for error E27

If E27 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. 1Turn the dishwasher off.
  2. 2Confirm the plug is fully seated without opening electrical enclosures.
  3. 3Use a qualified electrician to check the supply voltage and circuit.

Stop and get qualified help when

  • Always stop if lights flicker, wiring smells hot or breakers trip
  • Do not measure mains voltage unless qualified
Primary sourceBosch UK — dishwasher E27 ↗Verified 2026-07-17 · manufacturer