Not got much knowledge on DIY and I am female haha...
I had a Newlec extractor fitted by an electrician last year in my bathroom when I moved in. There was no extractor so he did it from scratch, coring a hole etc. The extractor works brilliantly when on, gets all the moisture out and sucks up lots of dust. However, as soon as it's off a draft comes in from outside and blows a lot of dust back in and makes the bathroom cold. The outlet on the exterior wall is a 3 flap one and the wind tends to blow it open. I have done some googling and it seems to be a simple fix with one of these backdraft mechanisms you can put inside the essential hole in the wall between the extractor and the outlet vent. How easy is it to slot one of these in? I have looked at the front of the extractor and to gain access to the hole I'd have to remove the unit by looks of things. It does have wires etc on it but I'm assuming it should come off easily then can be screwed back on once I have the backdraft inside the hole.
Any advice? Or should I leave this to an electrician despite there not being wiring involved?
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