FIRST TUNE-UP UNDER SERVICE AGREEMENT FOR 8YR HEATING SYSTEM. CHECK THERMOSTAT, HUMIDIFIER, ENERGY CONSUMPTION, AIR FILTER, AIRFLOW, FAN CONTROL, AND ALL ELECTRICAL CONNECTIONS. CHECK HEAT EXCHANGER AND HIGH LIMIT CONTROL. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CLEAN AND CHECK BURNERS AND BURNER OPERATION. LUBRICATE ALL NECESSARY MOVING PARTS, AND ADJUST BLOWER COMPONENTS.