Preventative maintenence inspection on 2019 Trane S8X1 installed in 2020. Both 16x20x1 air filters in good condition. Clean flame sensor and check ignitor. Visual inspection of burners. Test ran system in heating mode from thermostat. System is operating properly within temperature rise and Manifold gas pressure specifications. Blower and inducer motors tested good. During test run, noticed that the plenum/supply duct was warm. Found that the plenum is no insulated at all. It is highly recommended to have the plenum insulated to prevent efficiency loss, and condensation on the ductwork during the Summer. Current service history is showing signs of water damage from condensation. A quote for insulating the plenum will be prepared and sent over. Aside from the insulation situation, the furnace is operating properly, with no other issues found, or suspected at this time.
