CLIMATE CONTROL SYSTEM THE FAN SPEED ADJUSTMENT...

  • Tiny
  • louraskin
  • 2006 Ford Escape
  • 30,000 miles

Climate Control System: The Fan Speed Adjustment switch positions 1 and 2 does not open the instrument panel air vents, turn-on the fan and the AC does not operate. In fan switch positions 3 and 4, each selection works as expected.

Thursday, November 29th, 2012 AT 3:25 PM

16 Answers

  • Tiny
  • saturntech9
  • Expert
  • 28,252 posts

Do you have a multi meter to do some testing?

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Thursday, November 29th, 2012 AT 4:18 PM
  • Tiny
  • louraskin
  • Member

Yes, I do have a multi-meter.

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Thursday, November 29th, 2012 AT 6:59 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,252 posts

So fan position one and two doesnt turn on the blower motor?

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Thursday, November 29th, 2012 AT 11:39 PM
  • Tiny
  • louraskin
  • Member

Yes, that is correct; fan switch positions 1 and 2, no blower motor. Positions 3 and 4, the blower motor runs in a normal manner.

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Friday, November 30th, 2012 AT 4:25 AM
  • Tiny
  • saturntech9
  • Expert
  • 28,252 posts

I posted the trouble tree let me know what you find.

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Saturday, December 1st, 2012 AT 2:03 AM
  • Tiny
  • louraskin
  • Member

Thank you for the troubleshooting tree. Now, I need some input on accessing the fan control switch and mentioned wiring without destroying the grill panel.

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Saturday, December 1st, 2012 AT 7:19 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,252 posts

I posted how to remove the ac control.

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Saturday, December 1st, 2012 AT 8:03 PM
  • Tiny
  • louraskin
  • Member

Progress to date: Switch panel and switch removed. Did a resistance check on the disconnected switch positions and it appears to be working okay; that is a circuit is formed on different connector pins in each position, except off.

The instruction asked that the blower motor power and the blower motor resistor be disconnected for resistance check. I have been unable to locate either the blower motor power connector or the blower motor resistor.

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Wednesday, December 5th, 2012 AT 11:06 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,252 posts

I posted a diagram to show you where the resistor and blower motor is.

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Thursday, December 6th, 2012 AT 7:26 PM
  • Tiny
  • louraskin
  • Member

Mission Accomplished, partially. I located the Blower Motor Resistor removed it and found it be heavily rusted, flaking and one resistor coil disconnected. As a temporary fix, I connected the "floater" resistor coil to another having a common connection using a small gage solid electrical wire, holding it in its approximate connected position. All fan speeds are now functional at the expected manner, indicating the fan switch is functional.

I have also located a replacement Blower Motor Resistor on eBay. Would you have a recommended supplier?

Saturntech9, you assistance has been of great value and very much appreciated.

Thank you very much.

Lou Raskin

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Thursday, December 6th, 2012 AT 9:53 PM

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