I have 2 extractor fans in the house I have just moved into..one in the bathroom and the other in the en suite. Both are vented thru the ceilings. The bathroom extracts well but the ensuite actually blows air into the room when switched on which i assume it should not do. Removing the grill just seems to show the vent ducting and not the unit itself . Is the unit faulty or has the unit been fitted incorrectly and if so can it be remedied easily....
DIY amateur here
DIY amateur here