MAINT. CHECK-UP FOR 9YR HEATING UNIT. CHECK THERMOSTAT, AIR FILTER, AIRFLOW, HUMIDIFIER, GAS PRESSURE, FAN CONTROL, ENERGY CONSUMPTION, HEAT EXCHANGER, HIGH LIMIT CONTROL, AND ALL ELECTRICAL CONNECTIONS. CLEAN AND CHECK BURNERS AND BURNER OPERTION. LUBRICATE ALL NECESSARY MOVING PARTS, AND ADJUST BLOWER COMPONENTS. NEW SERVICE AGREEMENT.