Dishwasher interior remains wet; poor drying performance even on programs with a drying cycle.

Safety first: Disconnect power before accessing any fan or heater components.

• Step 1 – Rinse aid:
  • Check and refill the rinse aid dispenser.
  • Increase the rinse aid dosage setting if spots or wetness persist.
• Step 2 – Program choice:
  • Use a hotter program with active drying rather than the shortest Eco cycle.
• Step 3 – Loading and door opening:
  • Load dishes so that water can run off (e.g., tilt cups and bowls).
  • Open the door slightly at the end of the cycle to release steam.
• Step 4 – Drying fan (if present):
  • If your Siemens model has a side fan and you hear no fan noise, the fan may be defective.
  • Access and test/replace the fan as described for error code E07.

If dishes are also cold at the end of the cycle, investigate heater/heat pump issues (E09/E10-related).