"Fan not running" -- which fan?
Assuming it's the PC rack fan, that means that your entire motherboard is not receiving power -- this is far beyond a simple pendant issue. Unplug the power connector (two blue wires in a white plastic housing) from the top of the PC rack and check if any voltage is present. It should be ~27VDC.
"Red and green lights on KPS" -- which lights? What blinking pattern? How fast?