TUNE-UP ON 8YR HEATING UNIT. CLEAN AND CHECK BURNERS AND BURNER OPERATION. CHECK HUMIDIFIER, HEAT EXCHANGER, HIGH LIMIT CONTROL, FAN CONTROL, THERMOSTAT, AIR FILTER, GAS PRESSURE, AND ALL ELECTRICAL CONNECTIONS. ADJUST BLOWER COMPONENTS, AND LUBRICATE ALL NECESSARY MOVING PARTS. RENEWED SERVICE AGREEMENT.