Topic: Blower motor fan running when off
in Forum: C3 Electrical
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
The blower motor(circuit) is designed for the blower to run on low speed any time the key is on. This has to do with the ventilation issues. One note, tho...it only works this way on the A/C equipped cars. The non-A/C cars do not have this unique feature, since they have vents that can be opened. 
Perhaps your switch was replaced somewhere with a switch for a non-A/C car? Just a weird thought, but... If the panel does actually have the word "Off" by the blower switch, AND it has the A/C position on the slider, that seems really weird...
Bottom line is, the fan is supposed to run with the key on, regardless of the blower switch position...
Perhaps your switch was replaced somewhere with a switch for a non-A/C car? Just a weird thought, but... If the panel does actually have the word "Off" by the blower switch, AND it has the A/C position on the slider, that seems really weird...
Bottom line is, the fan is supposed to run with the key on, regardless of the blower switch position...
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"
Thanks for the reply Joel, for now I have removed the brown wire from the blower motor resistor and this has done away with that feature. I can't stand the noise of the fan running unless I want it on.
Another question here,
Is there a kit from some of the vette supply houses that replaces all of the ac/heater vacuum lines and the vacuum fitting that connects to the heater/ac controls?
Another question here,
Is there a kit from some of the vette supply houses that replaces all of the ac/heater vacuum lines and the vacuum fitting that connects to the heater/ac controls?
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Links not werking, John...
I know there are kits with the vac. lines, and instructions on where they all go, but I don't know about the molded connector("vacuum fitting") that fits on the control...
I know there are kits with the vac. lines, and instructions on where they all go, but I don't know about the molded connector("vacuum fitting") that fits on the control...
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"
Part # 663252 and 453047
Corvette Central open their site select year 1977... in description type in heater vacumn hose, next search would be.... heater vacumn connector.
Try this let me know I will try to send link
John
in Forum: C3 Electrical
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