Comfort issues in the home. Found home drastically imbalanced with the basement temperature at 60 degf, 1st floor set to 72 and at 72 degf, 2nd floor setpoint 72 and at 77, and loft in excess of 85 degf. Reviewed system and found zone panel calling for conditioning but 2nd floor zone damper closed. Spring open power close damper with no voltage to damper. Manually opened damper for now and checked airflow. Damper requires replacement due to spring failure. Recommend upgrading zone panel and both dampers to prevent future issues. Issue dampers is 8x18 and other dampers is 8x16. Also recommend sealing all ductwork in mechanical room as ductwork is leaking in several locations. Turned up water heater at customers request from "A" to "B". Recommend changing air filter as last filter change was March 3. Filters should be checked monthly during peak season operation. Booster fan recommendation as well to increase airflow to loft area.