A/C cycles at 4th fan speed

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07-31-2002, 11:01 PM

hxiao

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A/C cycles at 4th fan speed

Hi All,
I would like to seek your help on finding out my A/C problem. Lately I found out that when I set the fan speed to 4(highest setting), the A/C seems to work off and on. The symptom is that the air flow from the vents stays high for a couple of seconds and then suddenly drops, and comes back on high after a couple of seconds at low, and it will repeat this pattern until I set the fan speed to 3 or lower. Can someone shed light on what is wrong with A/C? Any suggestions will be greatly appreciated.

Thanks
Hua

07-31-2002, 11:09 PM

Requin6

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Re: A/C cycles at 4th fan speed

Quote:

Originally posted by hxiao
Hi All,
I would like to seek your help on finding out my A/C problem. Lately I found out that when I set the fan speed to 4(highest setting), the A/C seems to work off and on. The symptom is that the air flow from the vents stays high for a couple of seconds and then suddenly drops, and comes back on high after a couple of seconds at low, and it will repeat this pattern until I set the fan speed to 3 or lower. Can someone shed light on what is wrong with A/C? Any suggestions will be greatly appreciated.

Thanks
Hua

sounds like a "fan blower resistor" i had the same problem except that my 4th setting didnt go on and off, it was full blast at all times. but you need to get nissan part # 27150-1E405 (fan blower resistor)
take your old one out by looking under the glove box, under the dash, and there will be a brown clip clipped into a skinny plate held in by 2 screws. unscrew the screws and unclip the clip, take out the old part. put in the new one clip it in, screw it in...and you are all set.
--Paul

08-01-2002, 06:37 AM

njmaxseltd

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It's not the resistor. The resistor only controls speeds 1, 2 and 3. If your having a problem with speed 4, your blower motor might be to blame, not the resistor pack. It's not using the resistors on that speed setting.

08-01-2002, 10:11 AM

2DMax

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do you have an automatic climate control unit?

08-01-2002, 11:40 AM

njmaxseltd

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Quote:

Originally posted by 2DMax
do you have an automatic climate control unit?

If he has 4 fan speed settings 1 - 4 he doesn't have auto climate control!

08-01-2002, 07:26 PM

kvzeyde

Senior Member

Join Date: Dec 2001

Posts: 162

4 speed fan on auto climate control

My 99SE has automatic climate control with a manual override which allows 4 speeds on the fan setting. It's shows as manual with a fan icon 1,2,3, or 4.

08-01-2002, 09:23 PM

JdawgX

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Join Date: Feb 2001

Posts: 653

Re: 4 speed fan on auto climate control

Quote:

Originally posted by kvzeyde
My 99SE has automatic climate control with a manual override which allows 4 speeds on the fan setting. It's shows as manual with a fan icon 1,2,3, or 4.

njmaxseltd = owned!

08-04-2002, 09:13 AM

hxiao

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Posts: 4

Thank you all for replying. My Maxima is a 95 GXE. I don't think it has a climate control. Before the cyclical problem(please see my original post on the problem) occurred I added a can of R134/oil/cleaner/dye etc. combiantion from Walmart to the A/C system. I wonder if that has caused this problem. I added it through the low side according to the instructions so the procedure was not a problem there, but whether the stuff I added was good is the question. If I just put the fan on without turning on the A/C, then things are going fine. So I suspect it is the A/C that is doing this off and one thing.

Thanks
Hua