Now to my question. The chief has what appears to be factory a/c. I am in the process of getting it back up and running. I pulled the box out (left the evaporator connected, just removed it from the box). Going to replace the switch, tstat and blower motor.
I had a reputable a/c shop evacuate everything and take a quick look at it. He mentioned to me that the compressor was only getting 9v or so, not a full 12v. Now I may have some electrical gremlins somewhere but everything seems to be working properly. He told me that I needed to check through the wiring to be on the safe side and make sure there was not a short somewhere. I want to make sure I get the right connections for the a/c switch and thermostat.
There is a blue wire as well as a red wire coming in to the a/c switch. There is then a red jumper wire from the switch to the thermostat. Finally there is a wire that runs from the thermostat to the blower motor. Then a ground wire off the blower motor.
I assume that the red wire coming from outside the box is 12v power. I then assume that the blue wire sends a signal to the compressor that power is engaged, thus engaging the clutch. And I assume the blower motor recieves its power from the thermostat. First of all, does this sound right?
And finally, here is a picture of my current fuse block. I am in the process of cleaning up connections.
The large yellow wire is fused and feeds power to both the heater switch in the dash as well as providing the power for the a/c switch. This is probably not the original setup, lol. The blue wire you see there is plugged into the a/c compressor block. The smaller yellow wire provides power to three aftermarket gagues (temp, volt, mech oil pressure).
So can you guys tell me is my wiring is correct (or will work in the current state)? Where does the original power for the a/c switch come from?
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