a/c blower switch...anybody got one ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

guypm · 08-13-2004, 01:14 PM

Im needing a a/c blower switch as mine will not reach the high speed when in the high speed position. Ive changed the relays and this has still not got me high speed fan. Anybody? Any help appreciated
Guy

chickenwing · 08-13-2004, 07:18 PM

While ur at it check the connector. Mine was melted. Do'nt have an extra.

hanssolo · 08-14-2004, 06:15 AM

rich, I've had to replace my fan switch itself every 2-3 years. Reminds me of my '92 Chevy van, the rear blower switch burnt out every 2 years also. Just bad GM design. Not enough power rating/heatsinking on the switches.

mrein3 · 08-14-2004, 11:44 AM

I bought a new switch and connector from LMC. Then I rewired it so the high-speed wire controlls a relay that I mounted to the heater assembly under the glove box. I believe too many amps run through the switch on high speed. I THINK they had a relay somewhere from the factory for high-speed but I was converting from no AC to AC so I just did it the way I think it SHOULD be.

Now if I can only figure out a way to stop breaking the top slide selector on the control assembly...

08-13-2004, 01:14 PM	#1
guypm Registered User Join Date: Feb 2002 Location: orange, tx usa Posts: 167	a/c blower switch...anybody got one ? Im needing a a/c blower switch as mine will not reach the high speed when in the high speed position. Ive changed the relays and this has still not got me high speed fan. Anybody? Any help appreciated Guy __________________ guypm 1971 SWB Fleetside/350 performer rpm heads &intake/ holley 750dp/1.5roller rockers/MSD6a/700r4 1650stall/one piece driveshaft/3.73 open/dynomax ceramic coated headers/3chamber flowmasters/

08-13-2004, 07:18 PM	#2
chickenwing Lovin' Life in Miss.! Join Date: Mar 2004 Location: Puckett, Mississippi Posts: 1,937	While ur at it check the connector. Mine was melted. Do'nt have an extra. __________________ The truck... you hear that? No really, you did hear that?!!!

08-14-2004, 06:15 AM	#3
hanssolo Registered User Join Date: Sep 2001 Location: central Ill. USA Posts: 447	rich, I've had to replace my fan switch itself every 2-3 years. Reminds me of my '92 Chevy van, the rear blower switch burnt out every 2 years also. Just bad GM design. Not enough power rating/heatsinking on the switches. __________________ 69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________

08-14-2004, 11:44 AM	#4
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	I bought a new switch and connector from LMC. Then I rewired it so the high-speed wire controlls a relay that I mounted to the heater assembly under the glove box. I believe too many amps run through the switch on high speed. I THINK they had a relay somewhere from the factory for high-speed but I was converting from no AC to AC so I just did it the way I think it SHOULD be. Now if I can only figure out a way to stop breaking the top slide selector on the control assembly... __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN



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