Box 40-1 Reported Structure Fire

12-25-17. At 1704 hrs box 40-1 was struck for a reported structure fire. Engine 40 responded with a crew of 3 and Rescue 40 responded with a crew of 2. Engine 40 arrived took side A with Tower 1. Engine 40 and Tower 1 crew investigated to find a furnace malfunction. Box was held to Company 40 and Tower 1. Crew meter the home finding no readings. Crews secured the power and fuel to the furnace. Time out was 1 hr 42 mins.