MAINTENANCE TUNE-UP FOR 7YR HEATING UNIT. CLEAN AND CHECK BURNERS AND BURNER OPERATION. ADJUST BLOWER COMPONENTS, AND LUBRICATE ALL NECESSARY MOVING PARTS. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT, AIR FILTER, ENERGY CONSUMPTION, HEAT EXCHANGER, HIGH LIMIT CONTROL, AIRFLOW, HUMIDIFIER, AND ALL ELECTRICAL CONNECTIONS. REPLACE CAPACITOR, AND FIXED GAS LINE.