Heating maintenance on x2 Trane Gas Furnace systems.. Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger Check and clean Burners, brush and vacuumed-ok Check and clean Air Filter- Electronic Air Cleaner 2x) Vacuum Filter filters and Cells Check and clean ignition Assembly-ok Check and clean- flame sensor-ok Check Safety Controls-ok Check CO2-CO- okay Check electrical wiring and components-ok Check Gas valve & Gas Line-ok Check Combustion Air, intake & exhaust lines-ok Check Temperatures split Performance-ok Check and clean condensate water traps-ok Check and cleaned Humidifier- Cartridge/Cabinets Hum water panel- Provided by customer Check and run Thermostats- operating at this time. Inspected water heater Check for water leak- no leakage at this time. Check gas valve and gas Line-ok Ran water heater, operating well at this moment. Run system, left system operating well at this time. Recommending duct clean