Fan behaviour

[bk1]

I have 3 Manrose fans in the house - two non-timer models and one timer model. All 3 have isolator switches present outside the room they are installed in.
The timer model behaves as I expect - comes on when light turned on, remains on for 1 min after light is turned off.
The non-timer models are controllable only through direct use of the isolator switch - using the light has no effect on them. Is this normal installation?
Many thanks.

 

[breezer]

depends who specified them as to what they are supposed to do. but normaly the answer would be no. they are wired direct not through the light switch

 

[bk1]

Ok, many thanks.
This means that since my wife is too short to reach the switch, I'll get her summoning me each time she's finished in the shower. Oh joy.