Performed Platinum Comfort Club Membership Tune-Up on Heating & Cooling System Performed maintenance check visit on 1988 Lennox furnace/ 2010 Philico a/c split system using 20x25x1 filter and R-410a refrigerant. Furnace is currently operating as best it can given the age, however there is heavy signs of wear on the unit. Heat exchange tubes show fair amount of rusting and additional oxygen in flame, but is currently passing combustion analysis. Spoke with homeowner on number of/placement and importance of CO detection, will quote a Defender CO monitor if they are interested in lower level detection. Outdoor unit capacitor is rated for 45/7.5mfd, all checks good at this time. Customer apparently uses an appliance warranty company and had asked, so I sent the customer 2 short videos to show condition of combustion and rusting inside furnace.
