. table border="1" class="MsoNormalTable" style="width:768px;border-collapse:collapse;border:medium none"> . | . li style="font-family:'arial' , 'helvetica' , sans-serif;font-size:10pt">Repair or replace defective parts in units and equipment and their controls including thermostats, automatic switches, fan controls, damper motors, louvers, relays, filters, controls, belts, heat exchangers, high limit controls, pressure controls, safety valves and automatic gas valves. | |