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2006 Chevy 2500 heater problem

Discussion in 'Chevy Trucks' started by plumberjohn, Dec 25, 2010.

  1. plumberjohn

    plumberjohn Junior Member
    Messages: 10

    Merry Christmas all Any of you have problems with the heater fan. I'm freezing my butt off. 2006 Chevy Silverado cab fan motor has been replaced, Wiring harness as well--worked for about a week and now I can't get the fan to even turn on again. Any help would be appreciated.
  2. damian

    damian Senior Member
    Messages: 330

    did you replace the resistor\control that the harness plugs into?
  3. plumberjohn

    plumberjohn Junior Member
    Messages: 10

    yes--I replaced the fan, resistor control & wiring harness--everything worked fin for about 1 day then it went back to no fan
  4. damian

    damian Senior Member
    Messages: 330

    time to start from scratch,check power and ground at the blower motor and find whats missing.if i were at the shop i'd bring up the alldata wire diagram and tell you where it grounds and how the blower switch is wired to the reistor/control but not til monday,sorry.dont forget the fuse.
  5. woodchuck2

    woodchuck2 Senior Member
    Messages: 304

    You should have full time power at the motor and the motor grounds out through the resistor/heater controls.
  6. Mister Plow

    Mister Plow Senior Member
    Messages: 139

    Long shot..... try wiggling the key.
    I've had it happen, especially when really cold, that the key wouldn't return to the "run" position fully from the "start" position, and the fan would not operate.
  7. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    Check the wires at the back side of the controls. I had a similar issue before and it ended up being a melted plug at the control panel. One of the pins in the plug had slid back some causing a bad connection and it melted that way.
  8. plumberjohn

    plumberjohn Junior Member
    Messages: 10

    Thanks all--I will try all of the above and let you know
  9. plumberjohn

    plumberjohn Junior Member
    Messages: 10

    were youy able to pull up a wiring diagram for me? If so could you e-mail it to me?