This is how the humidity sensor is set for the bathroom fan

A bathroom fan with a moisture sensor ensures a good room climate, prevents mold growth and removes odors at the same time. In order for the humidity sensor to work properly, it must be set correctly. You can find out how to do this here.

Why does the moisture sensor in a bathroom have to be set individually?

A humidity sensor works automatically. If there is too much moisture in the room, it switches on and if the moist air is removed, it also switches off again. The only problem is that every room is different. The sensitivity of the sensor must therefore always be configured individually for most bathroom fans.

  • Also read - Replacing the bathroom fan
  • Also read - installing bathroom fans yourself
  • Also read - Connect the bathroom fan

And this is how you should proceed:
1. First you need to lay the power line, because the setting can only be done when the power is on.
2. Loosen the screws to remove the cover and remove the protective cap.
3. The connection terminals for the mains connection and a potentiometer for setting the overrun and the humidity sensor are located under the protective cap.
4th. If your fan has a humidity sensor, your bathroom fan must be connected as follows: brown for the conductive wire, blue for the neutral conductor and gray for the connected conductor.
5. To set the overrun and the humidity sensor, the bathroom fan must be connected to the power supply.
6th. Now turn the potentiometer on the moisture sensor to the minimum level, i.e. all the way to the left, then all the way to the right.
7th. Wait until the fan stops rotating. This can take a minute or two.
8th. When the fan has come to a complete standstill, slowly turn the humidity sensor to the left until the fan starts rotating again.
9. Then turn the humidity sensor two steps to the right. As a result, it only starts turning when the humidity value exceeds the set value.
10. Now set the timer for the run-on. All the way to the right for the longest setting, all the way to the left for the shortest.
11. Screw the protective cap back on and attach your bathroom fan to the wall or ceiling provided for it.
12. Put on the cover, done.

Tips & Tricks If you do not trust yourself to adjust the live fan, you should get help from a qualified electrician, because initiative is also at your own risk.