My 6 zone system has been running great, but now I have one motorized baffle that doesn\’t close all the way half of the time. I uncovered it and energized it and de-energized it watched it go all the way to the stop about 1/2 of the time, and then the other 1/2 of the time it would stop 1/8\"-1/4\" before the stop. Is there some kind of maintenance or adjusting that needs to be done to get this to work properly again? I\’m also concerned that other baffles may start doing the same thing.
Thank you for your email regarding your model 6504 Aprilaire Zoned Comfort Control System. Our dampers are not designed to close 100% of the way. This helps relieve the pressure created in your HVAC system. We would like to learn more about your application. We ask for you to please contact us at 1-800-334-6011 Monday- Friday 7:00 a.m. – 5:00 p.m. central time or write us again with a number we may reach you at.