I have fitted the above fan and wired it just to permanent live and permanent neutral via a fused spur , I dont want the option to just pull a cord to turn it on as well , I just want it to operate on humidity . Since powering it up the fan is just staying on constantly , altering the two controls does nothing at all .One control is the humidity setting and the other is how long it would stay on if I had fitted the pullcord . Any ideas as this is brand new and I know its under warranty but surely the fan should not be on now ??????