soon to pick up our Pescara 2001

That's one of the main reasons we've kept our 2002 Pollensa (which we bought back in 2004) for so long, as we prefer the separate discrete controls for each of the fitted hab appliances etc. Easier to repair if needs be, although they have proved reliable (touch wood) overall, rather than the later complex electronic central control panels which judging by the many posts on here can prove temperamental. 

The only issue we've had has been the need for welding to correct the dreaded tin worm on the base vehicle at MOT time but still worth the cost to keep the old girl going.

Presumably you've had your Pescara checked out?