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Heat not circulating

Tiny
CTP7138
  • MEMBER
  • 1994 CHEVROLET SUBURBAN
  • 7.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
My k2500 is not circulating heat. The blower motor is working (brand new) but only runs on high speed, this leads me to believe that the motor resistor has gone bad, but I cannot find it! Please send diagram pictures with visual location (I am unsure how it looks on this make/model). Also, the actuator near the blower motor is clicking (bad?) And impossible to get to. Could this be the issue and not the resistor? It was found unplugged due to the location and once plugged in it surely clicks. Please respond. Thank you!
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Tuesday, December 12th, 2017 AT 8:55 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The resister is mounted on the top of the HVAC housing.
The door actuator would not cause blower speed issues.
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Tuesday, December 12th, 2017 AT 1:12 PM
Tiny
CTP7138
  • MEMBER
  • 7 POSTS
Thank you, found it. What are your thoughts as to why my air is not circulating through the front vents?
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Tuesday, December 12th, 2017 AT 1:42 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The modes doors are controlled by an electric actuator mounted on the left end of the HVAC housing. See view A.
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Tuesday, December 12th, 2017 AT 2:06 PM

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