Report: WA 04202017-0128A late-night fire alarm from a home in Wellesley was received and when no one answered the phone at the residence, our Central Station operator dispatched firefighters. Upon arrival, they found the heating system was leaking water, which tripped a smoke detector on the home’s monitored system. Firefighters shut off the water to stem the leak and limit damage. The homeowners were traveling out of state and eventually reached by phone. They were notified of the situation and arranged for repairs.