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Bosch · Dishwasher · E09

Symptoms checklist

An internal heat-pump heater fault was detected.

Diagnostic nodeE09SYMPTOMS
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Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: Bosch dishwasher families that use E09/E:09.

GUIDANCE

Symptoms checklist for error E09

Reported behavior connected to this code includes Water or dishes may remain cold; Cycle may stop; E09 appears near heating stages. Confirm the display code before matching symptoms to a repair path.

Safe sequence

  1. 1Turn off the dishwasher.
  2. 2Reset power at the breaker for 30 seconds.
  3. 3If E09 returns, stop use and contact Bosch support.

Stop and get qualified help when

  • The code returns after reset
  • There is overheating, odor or breaker tripping
Primary sourceBosch — dishwasher error codes ↗Verified 2026-07-17 · manufacturer