Just placed an order for: ST100HT Silent Tornado Hi-Power Bathroom Fan with Humidistat & Timer (Love the way it claims high power (not wanted) then boasts about "low energy" of 7.5W - not bad for an electrical business!). After placing the order the confirmation page had: "Faulty Items All warranties for all electrical items are invalidated if not installed by a fully qualified professional electrician. We cannot accept the return of any item deemed faulty unless it has been installed by a fully qualified professional electrician registered to one the UK's five trade bodies: NICEIC, NAPIT, ECA, ELECSA, JIB.
In order to verify the proper installation of the item and the integrity of the electrical system into which it was installed, including circuit protection devices and fuse board, we may need to speak to the installing electrician. For this reason we require that the customer provides full contact details of the installing electrician at the point of return, including the trade body to which they are registered and their registration number.
We cannot process any refund or replacement for a faulty item without this information."
I wouldn't have bought had I known (i.e. thought to read Ts&Cs beforehand) but I do consider it to be unreasonable. I wonder if it breaches Consumer laws. I'm more than capable of fitting a fan; the existing one is on RCD, MCB (lighting circuit) and has a SFCU in the supply (it's not operated by the light switch). The only reason for getting a new one is that the present one is sometimes sounding a bit 'strange', nothing serious but I decided to fit a new one and keep the old one as a spare. Better than waiting for magic smoke/terminal sulking or whatever.