Question about 1995 Chevrolet Caprice Classic

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Blower control switch

I HAVE A 98 K1500 CHEVY PICKUP I HAVE NO POWER TO BLOWER MOTOR I CHECKED THE HOT WIRE NOTHING BUT FUSE CHECKS OK I REPLACED BLOWER RESISTER COULD THIS BE THE CONTROL SWITCH AND IF SO HOW DO YOU REPLAE IT help replacing blower motor resister

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Do have any power on either wire going to the blower. the power runs from the fuse block through a relay, to the blower, to the resistor block and finally to the dash control. of you have power only on one side of the blower replace the blower. if you have no power at the blower replace the relay.

Hope this helps.

Mike

Posted on Jan 07, 2009

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SOURCE: blower control switch

I had this same problem and it turned out to be a simple fix,my problem was the hot wire contact on the blower itself.Fix was cleaning the contact w/sandpaper and replacing the part on the hot wire that connects to it.

Posted on Dec 29, 2008

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2 fuses to check, Kevin: in the instrument panel fuse block, 20 amp fuse #12, Htr-A/C. In the under hood fuse block, Frt HVAC fuse, 30 amp.

The new resistor you put in, was it called a "Blower Motor Resistor and Relay Pack" ? It appears there is a relay there with the resistor, but appears to only be used with htr on high speed. However the low speed wiring is also routed through this relay. If it was the Pack you put in, guess that is not an issue.
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If all is good so far, you need to check if blower motor ground is good.
Here can be found a wiring diagram for your Astro. Look for heater controls under the system called "HVAC". Every wiring diagram and TSB for the Astro (or any make, model) can be found here:
http://www.bbbind.com/free_tsb.html
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