My vent actuator randomly stopped working this season. I have power to the control board/motor; however, the internal relays on the unit seem to be broken. Rather than re-snake the wires through the headliner and behind the helm, I am going to have the cable re-soldered to the control board of the new unit.
I ordered a replacement from overseas, which is the only stock I could find. I also contacted Tiara and they would have a lead time of 10 weeks for around the same price.
On my 03 2003 35 Open, the actuator is a Linak LA12 - item no. 121000-11301220