Thanks Clock for the circuit diagram...it might well help!
When hazards are switched on only the LHS side work though, and yes Sospan, there are three flashers on the RHS and additionally a right turn dash warning light... but none of them work.
Am thinking this means no signal getting to the flasher unit from the switch...or a duff flasher unit. As i think its an all in one circuit board on these cars (many ££££s...) am hoping not the latter...!