Years ago, when doing any redecoration in my house, I took the opportunity to replace any old light switches and 13A sockets in the room, using whatever make/model was readily available at the time. However, that has led to something of a mish-mash of styles across the whole property, so nowadays I have standardised on using the BG 800 series (as my wife prefers the rounded slimline style to the old thick square versions).
However I have noticed recently that at least two of the new BG800 switches (a 2-gang and a 3-gang) have developed hairline cracks in the face plate each side of the actual switch units after only 1 or 2 years. Have I perhaps simply over-tightened the fixing screws, or is there a known problem with BG800? So far none of the 1-gang switches seem to be affected.
However I have noticed recently that at least two of the new BG800 switches (a 2-gang and a 3-gang) have developed hairline cracks in the face plate each side of the actual switch units after only 1 or 2 years. Have I perhaps simply over-tightened the fixing screws, or is there a known problem with BG800? So far none of the 1-gang switches seem to be affected.

