Graycenphil
Posts: 207
Joined: Sun Jan 19, 2014 6:17 am
Delivery Date: 30 Jan 2014
Leaf Number: 425345
Location: Eastford, CT USA

Heater/AC Fan Removal?

Fri Jul 25, 2014 4:53 pm

Heavy vibration from my fan, especially at high speeds. Maybe a mouse got inside?

Does anybody know how to remove the fan, or access it to see what the problem is?

Thanks.

Graycenphil
Posts: 207
Joined: Sun Jan 19, 2014 6:17 am
Delivery Date: 30 Jan 2014
Leaf Number: 425345
Location: Eastford, CT USA

Re: Heater/AC Blower Fan Removal?

Sat Jul 26, 2014 5:19 am

Okay, I figured it out. There was a mouse nest in the fan. How they can get in there, I have no idea. The grid over the fresh air inlet below the windshield seems plenty small enough to keep them out, but apparently not. Maybe I should put some screening over it

Relatively speaking, it was pretty easy to remove the fan. I'll try to explain it, and I took a few lousy pictures. I don't now how some of you get such beautiful shots.

First remove the glove compartment.

viewtopic.php?p=166628


Next you have to remove this electronic unit. Unscrew the two Phillips head screws, pretty visible on the left in this picture. There are two little metal tabs that secure it in place; they will release just by pushing it up. Set it off to the side; no need to disconnect the wiring.

Image


Here you can see it unscrewed and set off to the side, resting against the side of the console:


Image


The fan is up to the left, pretty much behind the radio. It is basically a round plastic housing with an electrical plug near the bottom/front (front meaning toward the engine). Sorry the picture isn't better:

Image

It's a bit easier to see than it seems in the picture. If you have a small head, you could actually get inside the glove compartment frame and really see it well. I could just about have done it, but had visions of the fire department coming to cut apart the car because I couldn't get back out.

Now you have to pull out that plug. It's a bit stiff, but there is no latch on it. Just a regular two conductor plug, like you find on older cars and washing machines. Pull it straight out (pull toward the glove compartment).

On top of the fan housing is a latch to hold it in place. I think I just squeezed the latch a bit while turning the fan housing. (Clockwise, I believe, but I'm not sure about that. It only turns one way.) Maybe 1/8 of a turn and the motor is free. It takes a bit of finagling to get it completely out from behind the dash.


Installation is just the reverse. The only worthwhile tip I have here is to secure that electrical plug when you are putting in the fan - it wants to get in the way. I just tucked it behind the padding till I seated the fan. Give the fan housing another 1/8 turn and it locks right in place. Plug it in.

The whole job took less than an hour. I wonder what it would have cost at the dealer?

HPJ
Posts: 12
Joined: Sun Feb 24, 2013 3:18 pm
Delivery Date: 15 Aug 2011
Leaf Number: 006436

Re: Heater/AC Fan Removal?

Sat Jul 26, 2014 10:17 am

Thanks for the nice write-up. Do you know if all the LEAF models and years are the same arrangement?

Graycenphil
Posts: 207
Joined: Sun Jan 19, 2014 6:17 am
Delivery Date: 30 Jan 2014
Leaf Number: 425345
Location: Eastford, CT USA

Re: Heater/AC Fan Removal?

Sat Jul 26, 2014 6:37 pm

I do not, but suspect they are the same. Mine looked like what I saw in the writeups on how to chane the cabin filter. Everything seeemed to be in the same place.

LeafyOne
Posts: 1
Joined: Sat Jan 07, 2012 8:51 am
Delivery Date: 28 Nov 2011

Re: Heater/AC Fan Removal?

Fri Jan 09, 2015 4:05 am

This thread saved me a pain$ul trip to the dealer. 2012 Leaf - same general location of all the relevant screws and latches - I didn't have a glove box light to worry about and I also didn't need to move the electronics to remove the blower motor to clean out the debris. My blower motor power connector does have a latch to release the cord. Total time less than 30 minutes.

I simply didn't know that that plastic mesh in the engine compartment was the only "filter" before going straight into the blower motor assembly - I'll keep that cleaned out better from here on out! It was pretty wild looking up through the glove box hole and out the blower housing and seeing daylight...

So... If your dash starts shaking when you turn on your defroster or heater - a very simple and straight forward article to save the trip to the dealer just to clean out the leaves/pine needles and acorns that rolled down your windshield and into your blower motor assembly!

I saved probably >200 due to this article. Thank you all.

LeafyOne
2012 46K 11 bars

Graycenphil
Posts: 207
Joined: Sun Jan 19, 2014 6:17 am
Delivery Date: 30 Jan 2014
Leaf Number: 425345
Location: Eastford, CT USA

Re: Heater/AC Fan Removal?

Sun Jan 11, 2015 5:11 pm

Glad it helped. Thanks for posting the 2012 info.

LowellStewart
Posts: 1
Joined: Sun Oct 25, 2015 1:13 pm
Delivery Date: 29 Sep 2012
Leaf Number: 021873

Re: Heater/AC Fan Removal?

Sun Oct 25, 2015 1:19 pm

My 2012 had a locking connector on the fan. Just grab it and squeeze to unlock it.

Other than that, the instructions were perfect. Thanks for the help!

ddouriet
Posts: 1
Joined: Sat Nov 14, 2015 9:53 pm
Delivery Date: 28 Feb 2015
Leaf Number: 331122
Location: Round Rock, Texas
Contact: Website YouTube

Re: Heater/AC Fan Removal?

Sun Nov 15, 2015 10:50 am

Thanks to Graycenphil for the detailed instructions.

I own a 2014 Leaf.

I was away for less than a week, and a mouse got all the way in into the ventilation blower, leaving droppings, acorn skins and leaves. My quiet fan was suddenly rattling loudly.

Following the given steps, I was able to get to the fan, and cabin air filter, and vacuum all the debris left by the critters. Now My fan is quiet again.

These are the steps to get to the fan:

First step is to remove the glove compartment.
1. Remove the plastic panel under the glove compartment pulling downwards. It looks like this:
Image

2. Remove 4 screws under the glove compartment:
Image

3. Open the glove compartmet. Remove 2 screws inside:
Image

4. Remove 4 screws across the top:
Image

5. Pull glove compartment towards the front. It is held in place by 1 plug on the left, and three on the right. This is how the glove compartment looks when removed:
Image

6. A circuit module is in the way. By removing these two screws, it can be moved down. No need to disconnect any cables:
Image
This how it looks when the circuit module is out of the way:
Image

7. This is the blower fan. Disconnect the connector at the right. It has a latching tab:
Image

8. Remove the fan by pressing on the tab located at the top, and rotating to the right a quarter of an inch or less. The fan assembly comes out effortlessly:
Image

9. Clean the fan as needed. I also vacuumed the fan cavity:
Image

10. Below the fan cavity is the cover for the cabin air filter. Open it from below and extract the filter. I also had mouse droppings and debris. I also vacuumed the cavity where the air filter sits:
Image


Do everything is reverse to put all back together. As mentioned by Graycenphil, the fan cable might be in the way:
Image
Tuck it away temporarily as shown:
Image

Graycenphil
Posts: 207
Joined: Sun Jan 19, 2014 6:17 am
Delivery Date: 30 Jan 2014
Leaf Number: 425345
Location: Eastford, CT USA

Re: Heater/AC Fan Removal?

Sun Nov 15, 2015 3:34 pm

Great pictures, thanks.

djw
Posts: 1
Joined: Sat Dec 12, 2015 1:26 pm
Delivery Date: 12 Dec 2015

Re: Heater/AC Fan Removal?

Sat Dec 12, 2015 1:44 pm

Thanks all for the info on the blower motor removal/cleaning. Dies anyone have an idea on how to stop squirrels from gaining access to the blower motor area? Is that plastic grill under the windshield wipers the only access? Thanks for any info.
PS my dealer charged me $130 to clean out the acorns! I thought I had a noisy/damaged motor and they said it was a warrantee job until they had it apart! When I went to pick up the car they told me squirrel invasion not covered and had no idea on how to keep them out so any ideas will be greatly appreciated as they have been back and I really need to keep them out. Thanks!
Best, DJW. davewerner@sbcglobal.net

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