Had the van serviced today by DTH Caravan Services and gladly all was well and best of all it is as dry as a bone.
One thing arose though which might be useful to somebody.
In a previous post I mentioned that I wanted the frame that houses the electrical consumer unit replacing as the "feet" that are secured by screws had broken so the unit was loose in its housing,
It turns out that vans of our age are hard wired into the unit unlike newer ones in which the wiring simply plugs into the unit making removal considerably simpler.
This hard wiring involves about five hours labour to remove and replace all the wiring along with a hefty bill for the said labour.
On the plus side my service man noticed there were some lugs on the back of the unit which could be secured to the back board of the housing so these were used and hey presto the unit is now solidly anchored.
This operation only took a few minutes but involves a very long screwdriver attachment to a drill.
I think this is the same method that was used by David Mantell one ( the only one ) of my correspondents.
Hope this helps someone as the breakage of the units feet is rather common.
Ian