could use a little help on this heater switch issue

[rainyraven]

Ok ever since I owned Roxy we've had a bit of a heater fan speed switch issue.

I have a new fan, I've pulled and changed every resistor at least twice..
what has me baffled right now is my fan speed has always been hard to get to high speed, to make it work you had to put it between the high and med clicks.. *like right before the next click, Now it seems my switch is working in reverse and the lower speeds are making it go faster.. ?!?!?

Oh weirder yet in the past I tried buying a brand new fan speed switch and it did not change the issue I still had to set it one click before high so it only went on high between the med /high speed selections..

Hopefully somebody has had this issue before and knows what I'm missing
Thanks guys

 

[smurph20]

Sounds like the same thing my s10 did. I took it all apart to find the plug had gotten hot and let the wires move around inside of it.

 

[heavyleft]

Have you thought about the blower motor relay?

 

[rainyraven]

@ Heavyleft, blowermtor relay.. yeah I replaced it once but it was with a used one.. maybe I should buy a new one and see how that goes.. I'll give it a try but it'll take 2 days for it to arrive

 

[89Suburban]

Sounds like the same thing my s10 did. I took it all apart to find the plug had gotten hot and let the wires move around inside of it.

Yes, buddy, did you check the wires in the plug socket for the switch?

 

[rainyraven]

ok been alittle busy wiring new gauges but went through the heater switch issue again, seems I've having a short in my heater/ac delay relay.. I'm not sure where the short is just yet.. but when I tap on the Relay sometimes it loses power.. so I'm guessing its someplace from that box to the fuse box, at least I've narrowed it down to that getting closer to a fix

 

[89Suburban]

ok been alittle busy wiring new gauges but went through the heater switch issue again, seems I've having a short in my heater/ac delay relay.. I'm not sure where the short is just yet.. but when I tap on the Relay sometimes it loses power.. so I'm guessing its someplace from that box to the fuse box, at least I've narrowed it down to that getting closer to a fix

You'll track it down, keep investigating.