23FEB2023 Jason B Arrived for fall tune up, spoke with Sheryl about the systems performance. It seems to be working well. Inspected blower cabinet, coil, motor, heat exchanger, and all components/connections at the furnace. Cycled system into heating and measured heat rise and gas pressure. Found blower wheel and beginning to get dirty, found system operating without a float switch. Spoke with homeowner about my findings. We decided to let it be at this time.