Dell PowerConnect 8024F Fan Issues

Good morning,

I am e-mailing because I have 2 PowerConnect 8024F switches in my work setup.  While checking our system I found that the LED on the front of our second switch was flashing red.  When I checked out what that meant I was told/informed (and observed) that it meant one of my fans on the rear had a red light.  This was Wednesday.  I was Googling some stuff yesterday(Friday) about how to replace the fan module and when I went to look and verify the modules I was seeing would work I noticed that all of the fan modules were off.  When I came in to work this morning the flashing red LED is gone and all my fan modules are now green and working.  I have a sinking feeling this is a precursor leading up to a catastrophic failure

So here, it only says Fan ID 1 and 2 because Fan 0 went down on Wednesday.  The timing of Fans 1 and 2 going down was toggling at about 7pm to 12am Wednesday night.  Finally, the fan status changed and stayed 0 and all the fans were all yesterday when I checked on the switch again.

Fan state change alarm: Fan ID: 1 Event: 4
Fan state change alarm: Fan ID: 2 Event: 4
Fan 0 has changed the state on unit 1 to 0
Fan 1 has changed the state on unit 1 to 0
Fan 2 has changed the state on unit 1 to 0
Fan state change alarm: Fan ID: 0 Event: 3
Fan state change alarm: Fan ID: 1 Event: 3
Fan state change alarm: Fan ID: 2 Event: 3

When I came in to work this morning, all the fans changed to being on about 30 mins before I walked into the room to check on the system.

Fan 0 has changed the state on unit 1 to 1
Fan 1 has changed the state on unit 1 to 1
Fan 2 has changed the state on unit 1 to 1

Is there any course of action anyone can recommend I try or should I just look to replace all the fans?  How would I check if the fan controller is history?