help with a/c

[cvcsmkr]

the blower has stopped working. i have replaced the speed selector switch and the relay which is loctated between the blower and the accumaltor. there is no voltage going to the wire(purple) that plugs in to the blower motor. when i got the truck a week ago it only worked in high now it doesn't work at all. where does the motor get power from? are there any safety switchs in series with the power to blower? the compressor runs fine its just the blower.

 

[truckins10]

Theres a resistor block on top of the housing that the blower is secured to. It has about 4-5 wires I think. That gives you the different fan speeds, so if that is bad the fan will not work. I th8ink you eliminated everything else. Stupid question.....did you check the fuses?? Fern Sy#477