Silent Design 150

No, this is Hydroscopic tape, it is to protect the sensor from moisture, but will allow vapour through. Removing this may damage the sensor and invalidate the warranty.

This may be due to incorrect wiring, please have a qualified electrician check this with the install guide and speak to the EnviroVent technical department if required. It may also be due to an incorrectly set humidity sensor (model dependant). If a humidity sensor version is fitted the sensitivity can be adjusted on the extractor fan. Adjusting clock wise will make the sensor less sensitive, anticlockwise will make the sensor more sensitive to humidity.

If an extractor fan will not operate, a qualified electrician will need to check the wiring, ensuring the fan is wired correctly and receiving power.

Always isolate power first. The cover can be removed by firstly pushing the small reseeded retaining point on one of the edges of the extractor fan, then slowly unclipping the rest of the cover with a small flat screw driver.

These extractor fans require a permanent live and neutral and a switch live (to trigger the fan)

Yes, as long as the circuit is protected by a 30mA RCD