Performed furnace clean and tune; inspected the exhaust and intake PVC ensuring all connections were secured, removed and cleaned the burners along with the flame sensor, cycled the system on and checked gas pressures, performed a combustion test verifying no CO in the airstream, and lastly replaced the 16x25x1 filter I am including a quote for an electronic air cleaner due to the amount of dust found on the blower wheel. The filter I pulled out today is too restrictive on the sytem causing the blower motor to pull more amps causing strain on this 5 year old furnace. Also found a couple sections on the gas line that leaked gas i did remove and re doped theses connections. This system is currently operating normal and heating at 47 degrees at this time. Job complete