Nissan Maxima: Quick A/C control question.

Sounds like the very common/typical fan speed control problem. Most report it
during winter time when they can only get heat to blow in the highest position.

Usually it's a problem with the resistors that are in the duct work near the
passenger's feet. It controls the blower and and when one of the resistors
opens the fan only works in the one position.

Not a hard repair for the home mechanic.

+G wrote:
 

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On Mon, 21 Jun 2004 01:45:35 +0000, Don't Reply to this address wrote:
 
during winter time when they can only get heat to blow in the highest 

If replacing the resistor fixes the problem, but the replacement resistor
lasts a year (or less), then you need a new blower motor.

When the blower motor bearings begin to seize, the motor consumes more
current, which puts more stress on the resistor.

"+G" <removethis.com> wrote in message news:<071Bc.7406$uunet.ca>... 

Others have already answered your question - here are more details.

Here is the exact posting form the maxima.org forums:

Why does my A/C only work on fan speed 4?

There is a resistor assembly mounted on the air duct close to the
blower motor. That part has failed. It is used to control fan speeds
1, 2, and 3. Speed 4 is the maximum blower motor speed, so no
resistors are involved. Replacing the resistor assembly is something
the home mechanic can do. The only tool needed is a Phillips
screwdriver. The replacement part costs about US$25.

The blower motor is located just above the passenger's feet. Look at
the wires leading away from the blower motor. Just inches away from
the blower motor there is an electrical connector located on the air
duct. That's the resistor assembly. It is easy to remove and replace.

Replacement is the usual remedy. However, if a spot of localized
damage is seen it may be repaired with a soldering gun.

There is a good photo of the blower motor and resistor assembly in the
Haynes repair manual, page 3-8. If you don't already have a copy of
this book, please get one. It will be money well spent.

a) Move the front pass seat all the way back (for convenience)
b) Remove a harness connector (with 4 wires I think) running into the
bottom of the blower motor.
c) Remove the 2 philips screws that hold the blower motor resistor in
place.
d) Put new one in, reverse install.

Blower Motor Resistor Part Number: 27150-1E405

You can get it here:

http://www.nissanparts.cc/cart/?pn=27150-1E405

Should be $28 at your local dealer. It's $28 delivered from discount
Nissan parts sites.

Cheers,
Nirav
96 Max GLE, 106k

com (Nirav J. Modi) wrote in message news:<google.com>... 

Thank you everyone!

Sorry I didn't reply earlier, my NNTP feed seems to miss the replys.
Just googled it to see them. Thanks again, saved me $75/hr for a
mechanic to change it.

Thank God for the Internet.