davetheglitz
Electrician
One solution is to supply the bathroom light from the switched side of the isolator - ensures the fan has to be on from a landlords point of view but also provides maintenance isolation.
I'm with you 100% on this one Dave as far as piddly litle domestic fans go - just a suggestion for dealing with the problem for electrician who like to fit an isolator and landlords who don't want a fan switched off.But that only provides EXACTLY the same "maintenance isolation" as turning off the MCB in the consumer unit doesn't it.