I went over my AC yesterday, held 230 PSI for 20 min. System was cooling great, but my problem is my fan speed won't go into high speed. I have a new control switch, and AC/heater control panel. I had the motor & fan tested (just in case I had to replace them) and everything worked great. Could my switch gone bad so quick ? Has anyone have any suggestion.
Without the high speed there isn't enough air blowing out to cool the cabin.
I went over my AC yesterday, held 230 PSI for 20 min. System was cooling great, but my problem is my fan speed won't go into high speed. I have a new control switch, and AC/heater control panel. I had the motor & fan tested (just in case I had to replace them) and everything worked great. Could my switch gone bad so quick ? Has anyone have any suggestion.
Without the high speed there isn't enough air blowing out to cool the cabin.
[/QUOTE]
did you check the wire itself for a break. test it for continuity end to end.
also.. to help the cabin cooling.. have you put a shut off vavle on the heater core?
Joel Adams
C3VR Lifetime Member #56
My Link
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Joel, I was in Reading PA today and Stopped at Stoudts Corvette and PU the relay and a new resistor. Hopefully, I'll get a chance this weekend to swap out the parts.
Thanks
Annicorvette
Lifetime member # 35
Hey Warbird, I had the same problem with my 77 vette, check your fuses, high speed runs off of a different fuse. Mine is a 25 amp. I installed a bus breaker, (part number CBF 25 at NAPA). My fuse is located in the fuse box at the very top, it's a mother to get to for me because I am 6'4" so I find a smaller person or a very limber person to get to it. good luck, Gene
[QUOTE=annicorvette]Do you have a rear defrost ? if you do check this--in my 78 the fan is wired so the high speed fan is disabled if the rear defrost is on. Don't ask why i just know it is.[/QUOTE]
Is it possible they use the same circuit and if both are on high the AMP draw would be too high?
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Hey Lee, AA is right, different fan speed, different fuse. Just one of the small things that makes owning one of these beauty's fun, Huh. Gene
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"