Summary: Multiple fire units, including Truck 4 and Car 4, responded to a fire alarm activation at 1155 TLAV, off Maripostis Street, Syracuse, New York. The alarm was audible and reported by an alarm company. Upon investigation, the source was determined to be water condensation from the HVAC unit, not an active fire. The system was left in trouble due to water and a detector issue and could not be reset. Units cleared the scene and returned to service.