Chapter 3: Fault Finding & Maintenance 31• In some installations, it may not be possible to prevent the equipmentfrom being affected by external influences. In general this will not dam-age the equipment but it can lead to spurious resetting action, or momen-tarily may result in faulty operation.Product supportRaymarine products are supported by a worldwide network of distributorsand Authorized Service Representatives. If you encounter any difficultieswith this product, please contact either your national distributor, servicerepresentative, or the Raymarine Technical Services Call Center. Refer to theback cover or the Worldwide Distributor List for contact details.Before you consider returning the autopilot, make sure that the power supplycable is sound and that all connections are tight and free from corrosion. If theconnections are secure, refer to the Fault Finding section in this chapter.If you cannot trace or rectify the fault, contact your nearest Raymarine dealeror Service Center, specifying:• the SmartPilot controller and SmartPilot computer serial numbers:• the controller serial number is printed on its rear cover• the computer serial number is printed under its connector cover• the controller and computer software version numbersThe following illustration shows how to display the software information:• press and hold standby for 4 seconds:• after 2 seconds you will see the DISPLAY CAL screen• then after another 2 seconds you see controller software version• press disp to display the computer software version• press disp again to display the total number of hours the SmartPilot hasbeen used in Auto mode.