Pops Racer Posted November 23, 2014 Report Share Posted November 23, 2014 Blower motor runs in high only on the 850. I bought and installed a used but tested resistor. Still not working properly. Any thing else I should check? Link to comment Share on other sites More sharing options...
BEJinFBK Posted November 23, 2014 Report Share Posted November 23, 2014 Check the speed switch or the full voltage relay that makes the fan run at high speed. It may be stuck. Link to comment Share on other sites More sharing options...
Pops Racer Posted November 25, 2014 Author Report Share Posted November 25, 2014 Check the speed switch or the full voltage relay that makes the fan run at high speed. It may be stuck. relay is under the hood or driver side dash? ECC btw Link to comment Share on other sites More sharing options...
BEJinFBK Posted November 26, 2014 Report Share Posted November 26, 2014 I misunderstood... No relay - ECC is a whole different animal. Link to comment Share on other sites More sharing options...
Kevin. Posted November 26, 2014 Report Share Posted November 26, 2014 blower motor might have called it quits Link to comment Share on other sites More sharing options...
BEJinFBK Posted November 26, 2014 Report Share Posted November 26, 2014 If so, it wouldn't run at all. Op states that it runs at high speed. That would suggest either a shorted output transistor in the power stage ( resistor ) or a bad signal from the ECC to the power stage. OP - Just to confirm: Is your fan speed selector 4 speed or variable? Link to comment Share on other sites More sharing options...
Pops Racer Posted November 28, 2014 Author Report Share Posted November 28, 2014 Variable speed slider switch Seems that even on high no heat comes out. I'm not sure it's the resistor Link to comment Share on other sites More sharing options...
Pops Racer Posted November 30, 2014 Author Report Share Posted November 30, 2014 Bumpsha bump Link to comment Share on other sites More sharing options...
Pops Racer Posted December 5, 2014 Author Report Share Posted December 5, 2014 Bump No ideas? Link to comment Share on other sites More sharing options...
Pops Racer Posted December 18, 2014 Author Report Share Posted December 18, 2014 Replaced the ECC Runs fine now Link to comment Share on other sites More sharing options...
erikv11 Posted December 18, 2014 Report Share Posted December 18, 2014 Cool good to know. Link to comment Share on other sites More sharing options...
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