Gaggenau Steam generation failure

Steam oven does not produce steam, but heats like a normal oven

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Empty or incorrectly inserted water tank, Blocked water inlet, Failed steam generator element, Faulty water level or flow sensor

How to Fix / Troubleshooting

Safety: Allow the appliance to cool and disconnect power before accessing the steam system.

  • Check water tank: Fill the tank with fresh water, ensure it is properly seated, and that any float or magnet moves freely.
  • Clean contacts and inlet: Wipe the tank contacts and inlet area. Remove visible scale or debris.
  • Run descaling: If available, run a descaling program using the recommended descaler.
  • Listen for generator: Start a steam program and listen for the steam generator heating (slight boiling sound). No sound may indicate a failed element or control.

Note: If basic maintenance does not restore steam, the steam generator or sensors likely need professional replacement.

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Repair Difficulty

Hard 4/5

Required Part

Steam Generator / Water Tank Assembly
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