Yet another blower fan stuck on high

pfarrelli · Jul 25th, 2006, 01:58 PM

The blower fan on my 2001 Pathfiner LE 4WD with electronic climate control is stuck on high. There are many posts regarding this issue but none have exact solution.

Even when I manually change the fan speed or turn entire unit off, the fan stays on high.

Basically I have read it is probably the "fan control amplifier". From what I understand this is the same as the "fan resistor" found behind the glove box (according to a post, you need not remove the box change the part).

However I called the dealer and they said that when system is off and the fan continues to run, then it is not the resistor.

Then I call yet another dealer and they asked for my VIN. They then said it is not the FCA as it doesn't have one and I need to change the "AC conrtol Amplifier" (which costs $380+ dollars).

I also read today that I may be able to disconnect the positive lead on my battery for five minutes to let the computers reset. I have yet to try that today.

What I was wondering is if I could get some info on exactly WHAT my setup is for my year make model and type of system and what could be causign the problem. Do I have a resistor or not? etc. etc.

Thanks

Pf

dirtdog · Jul 25th, 2006, 02:03 PM

Nissan must have A/C problems with this system
2005 Pathfinder LE
My A/C went out - A/C condenser they said.

I just got mine back today and when it is on the auto setting it runs full blast

when I go to manual I can turn it down ?

Thank goodness it is still under warranty for me.

Will wait and take a long drive with it as the drive back from the dealer is only 20 minutes. If it stays on full blast I will take it back to the dealer for a fix .. and have some answers for you I hope .

pfarrelli · Jul 25th, 2006, 03:01 PM

Only problem is mine is on FULL all the time. No manual manipulation helps at all. Just high.. High and fast as can be.

dirtdog · Jul 26th, 2006, 11:08 AM

Sorry guy other than this bump I can't help you. Took it for a drive and it worked fine.

KSpider · Jul 26th, 2006, 12:44 PM

reading this post makes me think my AC is messed up as well (2006 LE)

Ill have the temp on 76 or 77 and its only 75 out and the blowers are going full blast on auto, Ill hit auto again and it will turn the fans down. been doing this for a few weeks now... seems like the auto turns the fans up to cool the car off but doesnt turn them back down...

dirtdog · Jul 26th, 2006, 03:39 PM

I've never had a vehicle with climate control

that I did not have problems with.

So it doesn't surprise me with the Nissan's .

I have had Cadillacs
Ford T Birds
Name it the climate control - auto always was fubar.

KSpider · Jul 26th, 2006, 04:46 PM

Well, I have never had any problem with climate control with any car I have had... until this one... though, not a huge deal (yet)

Delirious · Sep 5th, 2006, 01:31 PM

Quote:

Originally Posted by pfarrelli

The blower fan on my 2001 Pathfiner LE 4WD with electronic climate control is stuck on high. There are many posts regarding this issue but none have exact solution.

Even when I manually change the fan speed or turn entire unit off, the fan stays on high.

Basically I have read it is probably the "fan control amplifier". From what I understand this is the same as the "fan resistor" found behind the glove box (according to a post, you need not remove the box change the part).

However I called the dealer and they said that when system is off and the fan continues to run, then it is not the resistor.

Then I call yet another dealer and they asked for my VIN. They then said it is not the FCA as it doesn't have one and I need to change the "AC conrtol Amplifier" (which costs $380+ dollars).

I also read today that I may be able to disconnect the positive lead on my battery for five minutes to let the computers reset. I have yet to try that today.

What I was wondering is if I could get some info on exactly WHAT my setup is for my year make model and type of system and what could be causign the problem. Do I have a resistor or not? etc. etc.

Thanks

Pf

So have you resolved this problem?
I am interested as this is happening on my '97 Maxima. Blower fan motor run on high regardless of the switch setting including off! btw this is not a climate control system.

pfarrelli · Sep 13th, 2006, 03:24 PM

Quote:

Originally Posted by Delirious

So have you resolved this problem?
I am interested as this is happening on my '97 Maxima. Blower fan motor run on high regardless of the switch setting including off! btw this is not a climate control system.

Sorry I have not. Still blowing. I figured it would blow most of the time over the summer so why bother. Mabye soon but I fear I need to replace the entire climate control unit on teh dash (according to Nissan dealer). About $350 parts. I'd do it myself.

Ron 97 Pathfinder · Sep 16th, 2006, 02:08 AM

[quote=pfarrelli]"The blower fan on my 2001 Pathfiner LE 4WD with electronic climate control is stuck on high. There are many posts regarding this issue but none have exact solution."

Hey, I have a '97 pathfinder (auto air - climate control feature) with the same problem...I came here looking for info as I just spent a couple of hours in my driveway messing around. Here is what I do know...mine started last winter and to get a break from the fan noise I would pull the relay block. (I replaced the relay but still had the same problem) The relay block is located behind the ashtray near the fusebox. There are 3 large relay's (1.5"x1.5") and it is the one higher and in the center. Removing this will cut the power to the fan. (By the end of the winter I got pretty good at removing it and replacing it while driving.) Anyway we pulled the glove box and found the resistor. There was a wire connector running into it with a white plastic cap held in by 2 screws. When you pull it out the base is a metal cast housing with finger-like probes (I assume to read the temperature in the airbox). Inside there is a small curcuit board with the resistors and this board is connected to a NEC chip. I have not been able to find the exact chip online yet but a quick search found a close number and the description was a "high speed switch". I took a picture of the part and sent it to a dealer and was qouted $246.00 (Can). My Pathfinder is rough and I don't plan on keeping it long so I don't want to pay the dealer price so here are the options I have considered...Aftermarket...no luck, junkyard...no luck in my area, find Nec chip...need to search some more, Add a new switch...tonight I wired a 3-way toggle switch directly to the coupler that used to connect to the resistor assy. I was able to turn the fan on and off for $3.99. Now I need to find out how to connect a resistor to the switch to have a reduced speed setting._|_If anyone has any ideas on how to set this up or find the prpper part at a resonable price...please let me know._|_Blasted in Ontario!!!