FIRST CHECK-UP FOR 2YR HEATING UNIT. CLEAN THERMOSTAT, AIR FILTER, HEAT EXCHANGER, HIGH LIMIT CONTROL, AIRFLOW, ENERGY CONSUMPTION, GAS PRESSURE AND FOR PROPER VENTING, AND ALL ELECTRICAL CONNECTIONS. CLEAN AND CHECK BURNERS AND BURNER OPERATION. ADJUST BLOWER COMPONENTS, AND LUBRICATE ALL NECESSARY MOVING PARTS. REPLACED OUT DOOR CAP.