07DEC2023 Jason Brown Arrived for silver club fall tune up service. Spoke with homeowner about the systems performance. Spoke with homeowner about Uv, humidifier and equipment performance. It was nice and toasty when I arrived. Adjusted Uvv to 50% per customer request. Cycled the equipment into heating at the thermostat. Removed furnace panels and inspected coil Uv and heat exchanger. Inspected humidifier pad and tested operation. Tightened electrical connections, cleaned flame sensor, ohmed HSI and verified safeties. Ran furnace in all stages tested for monoxide and heat rise. All amps and specs are within the manufacturers range and this system is operating efficiently and safely at this time. 0ppm CO detected. Thanks again guys it was great to see you!