Why are my fans spinning at 100% on my sentry 3 unit?

Check your thermal probe to your sentry 3 make sure it is securely connected to the unit. If the cable is at all unplugged it will ramp the fans to 100% this is a failsafe for the unit.  If the plug is securely connected to the unit and the fans are still ramping at 100% then the cable itself is defective and will need to be replaced.


At this point go to and submit a ticket for a replacement. 

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