1ST CHECK-UP UNDER SERVICE AGREEMENT FOR 3YR HEATING SYSTEM. CHECK THERMOSTAT, AIR FILTER, HUMIDIFIER, AIRFLOW, FAN CONTROL, HEAT EXCHANGER, HIGH LIMIT CONTROL, AND ALL ELECTRICAL CONNECTIONS. CLEAN AND CHECK BURNERS AND BURNER OPERATION. ADJUST BLOWER COMPONENTS AND LUBRICATE ALL NECESSARY MOVING PARTS. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING.