1ST CLEAN AND CHECK ON SERVICE AGREEMENT FOR 2YR HEATING UNIT. CHECK THERMOSTAT, AIR FILTER, HUMIDIFIER, AIRFLOW, HEAT EXCHANGER, HIGH LIMIT CONTROL, AND ALL ELECTRICAL CONNECTIONS. REDID GAS LINE WITH DRIP LEG. ADJUST BLOWER COMPONENTS AND LUBRICATE ALL NECESSARY MOVING PARTS. CLEAN AND CHECK BURNERS & BURNER OPERATION. EVERYTHING IS OK.