I agree with Jay.
The thermal switch located at the bottom of the left radiator is supposed to activate both fans when the coolant temperature reaches 82 degrees Celsius. See post #7, and post #8 in the following thread.
http://www.chinariders.net/showthread.php?t=15595
If you short the connectors in the plug shown above, the radiator fans should activate if the ignition key is on. If shorting the plug works, the thermal switch is defective, and CSC will send you a replacement. If shorting the plug doesn't work, you have a loose connection elsewhere in the wiring.
Even if the thermal switch is good, I suggest you purchase a spare. The switch can be killed by vibration. The following, radiator fan switch is equivalent to the switch employed by the Zongshen RX3. This switch is designed for the following Suzuki and Kawasaki motorcycles.
Suzuki
GSX-R600 97-05
GSX-R750 96-08
VL/VZ800 01-11
DL1000 V-Strom 03-09
GSX-R1000 01-04
SV1000 03-07
TL1000R/S 98-03
GSX-R1300 “Hayabusa” 99-07
Kawasaki
Ninja ZX-6R 2003-2004
ZX636 2003-2004
ZX600 2003-2004
http://www.ebay.com/sch/i.html?_from...witch&_sacat=0
Other RX3 equivalent parts are listed in the following thread.
http://www.chinariders.net/showthread.php?t=15532
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894