malibu1973
Contributor
Posts: 106
Reg: 08-09-09
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06-16-12 09:26 PM - Post#2238068
I cannot figure out why my fan on the A/C, Vent, Heater will not blow on low. Works on 2, 3, & High. Any ideas? I know the high has a separate under the hood fuse, is there one for the low on the unit?
1973 Chevelle Malibu
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Butcher 318
Senior Member
Posts: 1063
Loc: Ft Wayne, Indiana
Reg: 06-29-04
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06-17-12 10:40 AM - Post#2238250
In response to malibu1973
Either under the dash or on the firewall under the hood is a series of resistors. They step the voltage down to slow the fan depending on what setting you have selected. This part has probably gone bad in one spot so you loose that speed. I will try and find the part number.
Not sure but this might be it. http://www.1aauto.com/1A/BlowerMotorResisto r/Chevy...
Edited by Butcher 318 on 06-17-12 10:43 AM. Reason for edit: No reason given.
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monte-77
Member
Posts: 859
Loc: Western New York State
Reg: 06-04-06
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06-17-12 10:40 AM - Post#2238252
In response to malibu1973
When this happened in my car the fan switch itself was bad. Got another on eBay.
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malibu1973
Contributor
Posts: 106
Reg: 08-09-09
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06-17-12 06:49 PM - Post#2238444
In response to monte-77
Thanks for the info, I'll start with the switch and go from there, I appreciate the help.
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Butcher 318
Senior Member
Posts: 1063
Loc: Ft Wayne, Indiana
Reg: 06-29-04
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06-18-12 04:11 AM - Post#2238573
In response to Butcher 318
I can't seem to find any further on a part number. This is a good link though.
http://www.ehow.com/how_7974579_troublesh oot-blowe...
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