|Blown fuse||Inspect the fuse and wiring||Replace fuse and repair wiring|
|Broken wiring or bad connection.||Check the fan motor ground and connectors.||Replace|
|Fan motor malfunction||Check the lead wires from the motor with circuit tester.||Replace|
|Broken resistor wiring||Check resistor using a circuit tester.||
|Fan motor switch malfunction.||Operate the fan switches in sequence and check whether the fan operates.||Replace|
|Evaporator inlet obstruction||Check evaporator inlet and filters.||Remove any obstruction and blow out filters or replace.|
|Air Leak||Check the cooling unit case joints for leaks.||Repair or replace any leakage areas.|
|Defective thermoswitch or cold control switch. (frozen evaporator)||Check the switch using a circuit tester.||Replace.|
|Perrin Manufacturing is committed to providing you with superior products and services; we renew this pledge through continual improvement of our products and motivation of our staff.
We faithfully comply with all of the requirements of our ISO 9001:2008 Quality Management System, the most current edition of the standard. Beyond that, our highly trained quality staff persistently search for new ways to improve the effectiveness of our system.