Took the van (2007 diesel Citroen Relay) for its weekly run, all was well to start with then the windscreen wipers stopped, I checked the handbook & found it is fuse 43 (30amp) I checked the fuse which looked ok & even changed it for a new one - still won’t work, with the wiper control on I checked for wiper motor sound- nothing (on the plus side no signs of burning) - I’m now at a loss what to check - all advice welcome please.