Complete 2 system furnace repair and preventative maintenance check. Attic: Changed filter. Ran static pressure test and combustion analysis. All results are within range. Blower motor controller is weak, suggesting a replacement. Tested all other electrical and mechanical parts. All readings are nominal. Basement: checked filter, leaving a fresh one. Ran static pressure test and combustion analysis. Both sets of results are within range. No secondary water safety, suggesting in line flow switch. Tested all electrical and mechanical components. Both systems are running and heating at this time.