93 full size Blazer

Tiny
DQROKS1
  • MEMBER
  • 1993 CHEVROLET BLAZER
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
Tuesday, October 23rd, 2007 AT 3:40 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Did you check for power at the fan speed resistor? Should be mounted on the HVAC plenum right near the blower motor
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Tuesday, October 23rd, 2007 AT 3:46 PM

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