Hi Keith.
Thanks for your reply sir.
It's actually nothing to do with the noise of the fan (although I realize the most complaints eminate from that aspect).
I'm more concerned as the unit is in an enclosure which is below 0 Celsius (Often -5 to -10), the fan often times making the situation even worse by cooling the unit unecessarily.
Other than pulling out the fan and having to visit every unit on site, I'd like to push a command to one or two of the routers to disable the unit.