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Convection Steam Oven Error Code E69


  • Convection Steam Oven (CSO) has error code E69
  • What error 69, E69, and F21 means
  • CSO with F21 message
  • CSO F21/E69 error


  • Boiler scaled up
  • Inlet valve leaking (valve not tight, limescale fragments in seal, etc.)
  • Foam in the boiler housing, especially after descaling


If descaling was carried out recently:

  • Water system pumping off water at least three times within 2 hours
  • Use of non-recommended descaling solution can cause foaming

For error E69 and message F21 on a Wolf Convection Steam Oven, no customer troubleshooting advice is available. Service is necessary to expertly diagnose and repair the product. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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