You are welcomed.
This a strange because if the fans do not work, it would overheat after running without the A/C.
The fan thermosensor ( fan switch) is located at lower part of radiator, unplug it and jump the terminals with a wire and turn on ignition switch. If the fans works, then the thermosensor is faulty.
The necessity to add coolant frequently should not be due to evaporation. I suspect there is a minor leak in the system and it would get worse along with time. You should get a pressure test done to find the leak. Is the reserve tank depleting as well as radiator or just the radiator is losing coolant?
Tuesday, February 3rd, 2009 AT 1:10 PM