Performed furnace tuneup. This is first visit on new contract. Rubber water supply tube from solenoid to humidifier assembly is torn. Homeowner elected to not replace line at this time, unhooked power supply to solenoid until replacement to ensure no water issues. If repair is made, water panel should be replaced. Bacteria growth and heavy particulates are active in ductwork- recommend installing air scrubber to improve indoor air quality. Blower wheel starting to accumulate buildup. System is currently functioning properly at this time. Passed carbon monoxide test at 0ppm. Www.airscrubberbyaerus.com