Gaggenau Extended Cycle Time / Heating or Sensor Issue

Display shows unusually long remaining time or cycle seems to run forever without finishing.

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.

Possible Causes

Insufficient water heating, faulty temperature sensor, low water level, heavy soil detection, limescale on heater

Steps:

Check water temperature: Ensure inlet water is within recommended range and that the heater is working (see E03/E09/E11).
Clean sensors and filters: Clean filters and sump to ensure accurate water level and temperature sensing.
Run descaling cycle: Remove limescale that can reduce heating efficiency.
Service mode: If available, run diagnostics to check heater and NTC operation. Replace faulty components.

Medium 3/5

Flow-Through Heater Assembly

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