On 12/03/2019 23:48, Roger Hayter wrote:
Unfortunately it is more likely to be wear on the internal contacts than
on the actuator, and it may soon fail completely. If they are not too
expensive it may be better to get a new switch.

Yes no doubt something will fail eventually, it was in the house when we
moved in and I reckon its around 12 years old, a new one is due
according to management but not before I DIY it as much as possible.I
can probably get a new switch for around £15 if necessary.