75 roadster with AC. blower switch

[Ross F.]

Ok. I'm jinxed! Got the car back together today. Going through and testing all the electrics.
For some reason my blower switch is working backward. When it's in the high position it's off. When it's in the off position it runs. Also it doesn't seem to have any umph in any setting.
Suggestions????

[Wayne W.]

Re: 75 roadster with AC. blower switch

? wipers work.

[Ross F.]

Re: 75 roadster with AC. blower switch

Don't know. I will check. I don't even have that switch plugged in yet.
I have further investigated the blower switch.
I find that there is no off.
And every notch gets progressively higher. But then when it hits the high setting it goes to off. Or very slow.

[Harmon C.]

Re: 75 roadster with AC. blower switch

Their is an in line fuse for he high speed . It is in the area under the master cylinder.

[Edward J.]

Re: 75 roadster with AC. blower switch

Ross, I don't have a 75 wiring dia. in front of me, But my 72 the blower has a fuse out in the engine compartment it is housing in a plastic case that is attached to the horn relay, drivers inner wheel housing . it was a orange wire.

[Ross F.]

Re: 75 roadster with AC. blower switch

Under the master cylinder or next to the wiper motor??
There is a large gauge orange wire that goes through a 30 amp in line fuse and exits as a red wire. It then goes to the relay.
I've replaced both.
the lowest setting is always on if a mode is selected. I figured that out.
maybe a ground issue?

[Ross F.]

Re: 75 roadster with AC. blower switch

Yep ground issue. Plus I needed to relearn how the system functions. ...
Got it now.