Would there be power in the black wire without 'instructions' from the controller? I ask because I just had an issue with my right side not going down. I took it apart and using 400 and 1000 grit sandpaper, cleaned the round on the contact board and all contacts. Now they work perfectly. Just some food for fodder.
Lovey & Thurston - Cali Foothills
2001 HR Vacationer (SS Minnow) - Gasser!
Obviously A Lowly and Inferior MH