MAINTENANCE TUNE-UP FOR 6 YR HT UNIT. EXT CUST NEW HOME 6 YR 3 PC, GROWTH. INSTALLED UV. EARNED SERVICE AGREEMENT. CLEAN AND CHECK BURNERS AND BURNER OPERATION. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT, FAN CONTROL, HIGH LIMIT CONTROL, HEAT EXCHANGER, AIRFLOW, AIR FILTER, ENERGY CONSUMPTION. AND ALL ELECTRICAL CONNECTIONS. LUBRICATE ALL NECESSARY MOVING PARTS AND ADJUST BLOWER COMPONENTS. MADE SURE UV WAS INSTALLED PROPERLY AND WORK AREA WAS LEFT CLEAN WHEN JOB WAS FINISHED. EVERYTHING IS RUNNING GOOD.