dobt respond and both just angle up. Not responsive at all. Select left or right mirror and it angles all the way up until max tilt and try's to keep going. Any clues? My guess is the switch?
id say water has got in somewhere, it really is a shit bit of design' as Drew says, check the door loom.
could just be dodgy contacts mate / rusty connectors... where the loom couples to the door.... never know your luck !
Diagnosed the problem today. Small plastic ball and joint broke. In the switch. Will be ordering a new one tomorrow.