Heater Fan wont shut off ??

davepatt · Oct 31st, 2006, 10:31 AM

My heater fan bstarted last week ( at full throttle ) and wont shut off... If I turn on the heat system, it works accordingly but will only stay full on and wont allow me to turn down or off the fan. Whats up ?

karizma23 · Oct 31st, 2006, 11:41 AM

Hi dave - did you ever get any resolution to this? This same exact problem just started with my '01 Pathfinder yesterday, and I'd like to know what I'm dealing with. Thanks!

davepatt · Oct 31st, 2006, 04:10 PM

Mine is an 02 and is not fixed...I'm just trying to get a sense of issue and cost to fix...( eg. can I do vs a $80 / hr mechanic...)

Xeno · Oct 31st, 2006, 05:16 PM

Probably the heater fan "resister pack" that controls the different settings is burnt out.

X

golfer · Nov 1st, 2006, 10:21 AM

Quote:

Originally Posted by davepatt

My heater fan bstarted last week ( at full throttle ) and wont shut off... If I turn on the heat system, it works accordingly but will only stay full on and wont allow me to turn down or off the fan. Whats up ?

More information would be nice... what year , manual heat \ A/c , auto climate control, with or without navagation system ???

karizma23 · Nov 1st, 2006, 01:46 PM

Well, I took my Pathfinder into the dealer today. $90 labor and a diagnostic later, it appears as though the car has a bad "Blower Control Amp." Evidentally this is a different part from the "Blower Motor Resistor" that is often attributed to this problem. The part is (so they say) $144.55 and labor can be anywhere from 1 to 2 hours.

By the way, my Pathfinder is a 2001 LE edition with the Navigation system and touchscreen climate controls.

golfer · Nov 1st, 2006, 02:32 PM

Quote:

Originally Posted by karizma23

Well, I took my Pathfinder into the dealer today. $90 labor and a diagnostic later, it appears as though the car has a bad "Blower Control Amp." Evidentally this is a different part from the "Blower Motor Resistor" that is often attributed to this problem. The part is (so they say) $144.55 and labor can be anywhere from 1 to 2 hours.

The control amp is fairly common.
Because it's an automatic climate control system, which is very complex, your correct there is no simple "resistor" used.

davepatt · Nov 2nd, 2006, 06:16 PM

sorry for lack of details...2002 LE with no navigation...but otherwise loaded...a/c, manual and auto heating cooling, etc...The fan speed controls seem to have no effect. The only thing I can change is the mode ( eg. circulating, feet, up/down, etc )...

**88pathoffroad** · Nov 4th, 2006, 09:08 PM

It's the blower amplifier...semi-common problem.

soho · Nov 7th, 2006, 01:14 PM

Has anyone removed the blower motor? I tried the other day and the motor kept hanging up on the coil housing and I could not get the coil housing out.

Croman · Nov 7th, 2006, 03:12 PM

This happened to me 3 days ago. There is a Service Bulletin that says you need a Blower Fan and Amp Kit. Part # 27030-6W000. Service Bulletins Nissan Cars

I've found the part online for about $200, so I'm guessing the price at the dealer would be about $400.

golfer · Nov 7th, 2006, 05:55 PM

Quote:

Originally Posted by Croman

This happened to me 3 days ago. There is a Service Bulletin that says you need a Blower Fan and Amp Kit. Part # 27030-6W000. Service Bulletins Nissan Cars

I've found the part online for about $200, so I'm guessing the price at the dealer would be about $400.

This bulletin only applies to 2002-2003 models only.