yearly maintenance on Coloursource Spots

Hi everyone. 

I'm approaching our summer maintenance week and since last maintenance we've installed a number of CS spot units. 


What maintenance routines should I do to the CS units?

How would  that (preventative) maintenance differ from a regular S4?


(our typical routine is clean lenses, check all parts that could fall off, check knobs and handles, check yoke and C-clamp, dust, clean reflector, check lamp socket base for arcing)

I would guess updating the firmware (if needed), but what about the fan and inside the LED "reflector" housing?  anything to do?