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  #1  
Old 06-09-2013, 07:22 AM
coupe1942 coupe1942 is offline
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Default AC blower motor resistor question

If the blower fan does not work on the lower settings, but only on high, and the blower motor resistor has been changed out with a new one and all fuses checked to ensure none are blown, is it normally a switch that is out or what?

The blower motor resistor was changed out with a new one.
The fuses were checked to ensure they were not blown out.
Nothing changed with the wiring and the resistor is plugged in properly.

If it is a switch, is this easy to remove and replace?
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Old 06-09-2013, 07:47 PM
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NissanTech NissanTech is offline
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If you are certain that the blower motor resistor is OK, and the blower motor only work on high speed, then it's very likely that the problem is the fan speed switch.

As you can see from the attached diagram, there are only three components for the blower motor. The switch, the blower motor and the resistor. If the blower motor works at high speed and the resistor is new, then the only other part is the switch.

AC blower motor resistor question-capture-png
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  #3  
Old 06-10-2013, 12:10 AM
coupe1942 coupe1942 is offline
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Thanks for the information on it, but is the front fan switch easily replaced by an individual or really something to leave to one's mechanic? Is there a part number for a '99 Quest available? Again, Thanks.
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Old 06-27-2013, 12:07 PM
jking511 jking511 is offline
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I have a 1999 Quest. The blower blows when the dial is on any setting on the heat side, when you select any setting to the right. The blower does not blow if the dial is turned to the left, to the Air Condition settings. I changed the resistor when the blower only worked on HI.
Does anyone have an idea why the blower will work for the heat but not for the air?
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Old 06-27-2013, 01:13 PM
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Quote:
Originally Posted by coupe1942 View Post
Thanks for the information on it, but is the front fan switch easily replaced by an individual or really something to leave to one's mechanic? Is there a part number for a '99 Quest available? Again, Thanks.
I apologize I missed the post. Changing the switch depends on you ability to work on cars, but you should be able to change it. No special tools are required.

About the part number you can find it here: Nissan USA eStore

Quote:
Originally Posted by jking511 View Post
I have a 1999 Quest. The blower blows when the dial is on any setting on the heat side, when you select any setting to the right. The blower does not blow if the dial is turned to the left, to the Air Condition settings. I changed the resistor when the blower only worked on HI.
Does anyone have an idea why the blower will work for the heat but not for the air?
The temperature setting has nothing to do with the blower motor. Could be that is pure coincidence or there is some short circuit behind the switch.
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