We have a timed fan in the bathroom which is linked to light switch. there is also an isolator switch. The fan turns off about 10mins after light is turned off.
Problem: Recently the fan stopped working properly. It lasts for about 6 minutes then conks out - makes noise as if it is trying to go but rotates at a snails pace.
our block of flats are about 3 years old. 6 other flats have the same problem.
Anyone got any ideas/experience of what the problem is? is it easy to fix? is there a maintenance regime we can follow to prevent problem in future?