Condensation or mold appears on walls despite Tado controlling heating.

Safety first: Mold can be a health hazard; wear a mask and gloves when cleaning.

• Increase minimum temperature: Raise the minimum setpoint in affected rooms to reduce cold surfaces where condensation forms.
• Ventilate: Regularly open windows for short, intense airing (5–10 minutes) to exchange humid indoor air with drier outdoor air.
• Use extractor fans: Ensure kitchen and bathroom extractor fans are used during and after cooking or showering.
• Monitor humidity: Use a separate hygrometer to monitor humidity and aim for 40–60% relative humidity.