The error code "3 x yellow blinks" is generated when the Sensor unit orientation is wrong.
- Check the Sensor unit installation.
- Check that the Sensor Unit wall mount is installed on a level surface either on the wall or under range hood bottom surface with the original double sided tape. Also check that the Sensor Unit fits perfectly into the wall mount and the wall mount or the Sensor Unit frame is not deformed.
- Unlock the Sensor Unit orientation.
If the problems persists, it is advised to replace the Sensor Unit. Contact your local supplier to order a new Sensor unit.