93 full size blazer

1993 CHEVROLET BLAZER
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DQROKS1
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on my heat a/c control which wire would be the hot wire thats tells the blower to turn on and also the a/c compressor i have wiring issues but this would help to know... or is there a relay between the control panel and blower that would tell it to turn on i have replaced the control box its self and no heat/a/c just want to force it on
Oct 23, 2007 at 3:40 PM
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2CARPRO JACK
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Did you check for power at the fan speed resistor? Should be mounted on the HVAC plenum right near the blower motor
Oct 23, 2007 at 3:46 PM