Fan switch

[knahavasu]

My 72 Cuda’ with air, blower fan is not working and has not worked for some time. Any ideas ?? Fuses all good, blower motor works when added power,

Anyone know where I can get a fan/blower switch ????

Thanks

 

[Challenger RTA]

When you turn switch on check if you have power at the fan. Next check to see if you have power at the switch.also check the resistor for power.Or did you already do that?

 

[voldart]

Not sure if 72 is same as 73 but wiring diagram appears same. Power for blower is provided thru pushbutton switch in any position except off. Mine was wired incorrectly ( for a non ac car) and the connector near glove box to resistor bank was left disconnected.
The blower selector switch shunts different resistors and in effect lowers resistance to blower motor. Least resistance on high. Good idea is to check ground connection of blower also.

 

[Matt Johnson]

Hey im getting ready to list a rallye heater control with a good switch... I can rebuild your fan switch... I bet its bad