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Humidity in the room increases

Humidity in the room increases — Insufficient ventilation

Siemens · iQ800 Tumble Dryer

What does Humidity in the room increases mean?

The humidity level in the room where the dryer is operating increases significantly. This indicates that the room is not adequately ventilated.

Common Causes

  • Insufficient air circulation in the room where the dryer is located.
  • Lack of proper ventilation during the drying cycle.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the room is sufficiently ventilated during dryer operation.

  2. 2

    Open a window or door to allow for better air circulation.

  3. 3

    Do not operate the dryer in a completely sealed off room.

  4. 4

    Check that the dryer's air inlet is not blocked.

Browse all codes in this manual (13)
Verified technical data. Last updated: April 2026

Related Faults

Change in the programme duration displayed during dryingChange in the programme duration displayed during drying — Dynamic adjustment by moisture sensorsCreasingCreasing — Laundry is creased after dryingDisplay panel goes off and Start button flashesDisplay panel goes off and Start button flashes — Energy saving mode activated
Source: Siemens iQ800 Tumble Dryer
Open Manual (Page 38)Search more codes in this manual