At 11:50 am all four Berlin Companies were dispatched to a reported possible structure fire. It was reported there was a smoke condition in the business at114 Mill St. Upon arrival Car 31 assumed command and found a light smoke condition and odor. Crews began investigating the interior while a crew from Truck 9 went to the roof to check the rooftop a/c units. The building was naturally ventilated and a rooftop unit was isolated and shut down. Crews picked up and the scene was turned over to the property owner.