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Old 09-13-2010, 08:13 AM
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A/C blower

A couple of weeks ago the blower on my a\c quit. The air was fine. You could feel it coming through the vents the faster you drove. This past weekend I checked it out. After checking all fuses related to the ac or blower we checked the relays on the fire wall. Nothing. Finally we found a resistor under the dash. We tapped it couple of time with a rubber mallet. Boom fan stated working.(better than before). But we notced it was very hot. Dose anyone know anything about these. Thanks
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Old 09-13-2010, 10:02 AM
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Re: A/C blower

I've never checked to see how hot it gets. But I replaced it all a few months back. Turned out the previous owner had hard wired the motor rather than buying a new plug (strange cause he'd spent an absolute fortune on servicing etc). The result was a melted motor!

This may have some useful info for you;

http://www.wjjeeps.com/blower_motor.htm
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Old 09-13-2010, 12:21 PM
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Re: A/C blower

Thanks. For the info.
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Old 09-13-2010, 12:47 PM
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Re: A/C blower

I replaced the blower motor resistor on my wife's Cavalier. It got pretty hot and that's why it was in the blower housing. It would force air across it for cooling.
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Old 09-14-2010, 09:15 PM
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Re: A/C blower

Depending on if you have the manual temp control system or the automatic zone control, there is indeed a resistor or a blower motor controller mounted in the HVAC housing. Many times one of the connectors for the resistor or controller has melted due to overheating due bad contact. A new connector can be spliced in.
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