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Bosch · Dishwasher · E09

Safe checks

An internal heat-pump heater fault was detected.

Diagnostic nodeE09SAFE-CHECKS
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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

Safe checks for error E09

Start only with checks that do not require panel removal or live electrical testing. The verified sequence for E09 begins with: Turn off the dishwasher.; Reset power at the breaker for 30 seconds.; If E09 returns, stop use and contact Bosch support..

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