1988 911 Cabriolet roof will not go up?

[RodMod]

Hello has anyone else had this problem or know what's the best plan of action?

I posted this on the Porsche general thread but had no luck so thought id have a go here.

The roof on my 88 cabriolet folded down at the push of the rocker switch as it should I made sure it was in its final position before setting off for a drive when I got back home I pushed the switch but all I can hear is a click coming from the rear of the cabin when I push the button.

Any ideas I have checked the fuse and gone through the procedure I always have done?

Since writing this I have checked the 2 micro switches and adjusters they seem to be working, that is the button is pushed in when the roof is ion final closed posision'

Thank you

Rod.