2ND CLEAN AND CHECK UNDER SERVICE AGREEMENT FOR 8YR HEATING SYSTEM. CHECK HEAT EXCHANGER, HIGH LIMIT CONTROL, FAN CONTROL, GAS PRESSURE, ENERGY CONSUMPTION, HUMIDIFIER, THERMOSTAT, AIR FILTER, AIRFLOW, AND ALL ELECTRICAL CONNECTIONS. LUBTICATE ALL NECESSARY MOVING PARTS, AND ADJUST BLOWER COMPONENTS. CLEAN AND CHECK BURNERS AND BURNER OPERATION.