2010 Heater Fan Replacement warning

[Stevewww]

My daughter's heater fan started acting up last summer. First, it was making a rumbling sound on high speed with the ac on, and later it started making a loud chirping noise and then it finally just quit The car only has 60k mileage, so I assumed we had a defective bearing in the fan motor. Here are some notes on the replacement:

First, this car is different than the older ones. The fan in on the left side of the car. They must have built the car around the fan. You should first ignore the manual, because it says you must completely disassemble the dash, airbags, remove steering wheel, instruments, etc. In other words, a very big job.

I discovered a short cut, by removing the fan from underneath, on the left side.
First remove both battery cables.

remove driver's seat, for wrestling room.

remove pedals.

Remove the one screw on the fan, and twist it counterclockwise to release the fan motor, and disconnect the wiring clip

Remove the silver box that is in the way. There is no need disconnect the wiring to it, just move it out of the way.


Part of the wiring harness goes across in front of the motor, and just needs to be worked over the top of the motor, as you begin to work the motor out.

It takes some time to work the motor toward the left side of the car, and down thru where the pedals were.


I purchased a motor out of a wrecked car on ebay for $50.00, and installed it .

The kicker is that when I got the old motor out, it was completely packed with a mouse's nest, and that siezed up the motor and blew out the fuses for it. The old motor is actual ok, but I did not re-use it.

I must be the first sucker to have to remove one of these, because there is not any info anywhere, other than the factory manual, which is useless. I even called the dealer, and they did not have a clue as to how to do it. I hope this helps someone else.

[702L32]

lots of great info


the fan is under the drivers dash area? well the gas filler is on the wrong side of the car too so im not surprised. i know our car was based/built on a renault and the europeans fill their gas tanks on the right side usually. my pontiac G6 was the same way too cause it was based on an OPEL chassis

[Stevewww]

Yes, It is just to the left of the centerline of the car - way up at the top, just under the dash pad. You cannot even see it, until you do some disassembly.

Now, the blower fan runs on high speed, dispite the dial setting. I am told it is the fan motor resistor/amplifier. That will be a lot easier to change.

[702L32]

well i hope i never have to work on my fan! the blower motor controller should be easier for sure. they are $70-90 on rockauto

[the.wong.kid]

yup blower motors suck on sentras' versas, rogues, and cubes all be on the driverside. the hard part is pulling the motor out without breaking the fan blades


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[702L32]

if mine does break it better go out when im in warranty. its and extended one too

[macnut]

Originally Posted by Stevewww

Now, the blower fan runs on high speed, dispite the dial setting. I am told it is the fan motor resistor/amplifier. That will be a lot easier to change.

Did a variable resistor come with the salvage blower, and if so did you use it?

Or when you moved that silver box to make room for the removal, could your original resistor have got damaged or the connection come apart?