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Replacing Blower Motor Resistor
Problem solved! After cleaning the contacts on the plug from the wiring harness that goes to the switch, I silver soldered the contacts, as they looked a bit heat damaged. When I plugged everything back together, eureka! In retrospect, I didn't need the resistor or the relay, but still saved... -
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Replacing Blower Motor Resistor
I give. Having replaced the switch, $24, the relay, $25, and now th resistor, $35, but still no joy. Anyone know if I can jury-rig an on / off switch with 12v DC directly to the blower (which I know works) through the two female clip leads on the blower to make it work. One lead is purple and... -
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Replacing Blower Motor Resistor
The heater HVAC fuse is OK. I pulled out the switch wiring harness and cleaned the plug contacts very well and put it all back together. Low speed - OK, Med - OK, High -OK, Off - OK ... then dead as doornail again! What does the relay near the resistor do, and could that be the culprit? -
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Replacing Blower Motor Resistor
Thanks, Sunlitcomet. Yup, all speeds are dead. Its a '97 Tahoe 1500 LT 4 WD 4 door. The plug-in part of the wiring harness was a bit melted, and insulation on the brown wire was melted back about 1 mm, but the wire looked in tact. I cleaned up the contacts on the plug the best I could, but it... -
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Replacing Blower Motor Resistor
I've had a similar problem - fan control either erratic or none at all. I replaced the switch and found some heat damage to the connector. The new switch worked perfectly ... for about a minute and now its dead. The fuse is not blown, and there is no evidence of heat damage to the new... -
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A/C Heater Control Unit has mind of it's own!!
How does a fellow get at the Heater Blower Control Switch? Do I have to chainsaw the dashboard in half or what? Thanks guys, you can see I can use a little help.- swensor
- Post #11
- Forum: General Discussion
