Preventive Maintenance
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Model 6476 User Guide
5 • Maintenance
Preventive Maintenance
Cleaning the fan filter
Periodically clean the filter on the Fan Tray Assembly. The frequency of cleaning depends on the environmental
conditions of where your equipment is located. Clean filter with a mild detergent and water, then air-dry, or
you can use compressed air. It should be completely dry before reuse.
Spare filters (part no. 6470-AF-6) are available from Patton Electronics Company.
Troubleshooting
System won’t power up
If the green LED on the power supply module does not light up, you should: remove the power supply module
from the chassis, then plug it back in, making sure it is seated properly. If the green LED still does not illumi-
nae, verify that the polarity is wired correctly at the back of the chassis.
If the green LED lights up on the power supply module, but the system still isn’t powering-up, then the mod-
ule may be faulty and should be returned to the manufacturer.
