e0
Moderate
Bosch · Dishwashers
Diagnostic test mode active
Quick Answer
Error code E0 on your Bosch Dishwashers means: Diagnostic test mode active. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Dishwasher is currently in diagnostic/test mode
  2. Accidentally entered diagnostic mode via button combination
  3. Control board stuck in test cycle
How to Fix It
1
Turn the dishwasher off using the power button.
2
Unplug the dishwasher or turn off the circuit breaker for 30 seconds.
3
Restore power and turn the dishwasher back on.
4
If the code returns, the control board may need inspection by a technician.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes
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