Question about 2003 Hyundai Santa Fe

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Automatic climate control fan only works on high

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Replace the fan speed control module, it is located near the fan in the air ductiing

Posted on Jul 02, 2009

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Either the control units are bad or the vacuum hoses behind controls are leaking or the module itself is bad.

Posted on Jul 02, 2009

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Have a 2009 Nissan Quest I can't turn the heat off. Just stays on a high level of blowing out heat .


If you have a fan that has different speed settings (1234, or low med high etc) and the only one that works is high - then the blower resistor pack has failed. If you have a climate control unit (where you just pick a temp you want) then the fan is controlled by the heating system and it sets fan speed. If you have climate control style try lowering the temp to a lower setting (current temp in vehicle) and see if fan slows down. If not then climate control unit or fan resistor bad. If dial type and you get nothing on lower settings (only high works like mentioned above) you need to change blower resistor. It is located under dash near the fan itself. Look for small unit bolted in duct near fan with wire plug going to it.

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Why do both radiator fans run on high any time the engine is running,...hot or cold


There are certain positions for the climate control system that will cause the A/C system to activate. When the A/C is on, the radiator fans automatically run to provide airflow thru the condenser coils in front of the radiator. This could be the issue. Turn off the climate controls and recheck.

Aug 02, 2014 | 2009 Chevrolet Tahoe

1 Answer

TOYOTA HIGHLANDER A/C CLIMATE CONTROL NOT FUNCTIONING


Based on the limited information provided, it would appear you have a bad climate control control board. This controls all heater/AC functions including climate control. If you're unable to change temperatures and/or fan speeds, the board is most likely bad and needs replacement.

Nov 16, 2011 | 2003 Toyota Highlander

1 Answer

Why wont my a/c or heater fan come on?


When the blower works only on the high setting its usually a bad blower resistor which is right near the blower motor. now you say it would always blow high regardless of the fan speed setting that would indicate probably the climate control unit or a connector problem somewhere. finally it not working at all may be the climate control unit or connection went bad even further. it might have a blown fuse or a bad blower motor in addition to the climate control unit or connector problem .check for power and ground at the blower motor. the power is supplied from fuses and may have a relay also. the ground is supplied from the climate control unit and goes through the resistor to control the fan speed. good luck

Oct 30, 2011 | 1997 Lincoln Continental

3 Answers

I have a 2002 Elantra. Yestreday the lower fan speeds on the air conditioner fan stopped working (positions 1,2,3). The High speed (position 4) works. Any ideas how to correct?


The blower motor resistors or fan switch itself are defective.
High speed has no resistors B+ goes straight to blower motor.

Jun 03, 2010 | 2000 Hyundai Elantra

2 Answers

A/c fan no longer operates.


Auto climate control uses a control module to regulate the variable speed fan. I have yet to locate it, but am currently working on a 96 with the same problem.

Aug 31, 2009 | 1996 Lincoln Town Car

1 Answer

Blower fan does not work on low or medium only on high. Lx model has auto climate control. wondering if it is blower motor, blower resister, or control (bad contacts). All buttons work on climate control....


Sounds like the problem is more with the blower motor assembly itself. The blower motor have micro-proccers built itnto them which comunicate with the control heads and do the actual regulating of the fan motor. Dealers have computers with diagnostic software which allows them to monitor what is happening in the eletronic controls of the vehicle. Electronic diagnostics without the diagnostic software makes it very diffecult to pinpoint the actual item causing the problem.

Jan 01, 2009 | Hyundai Motor 2003 Sonata

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