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Old 07-30-2015, 10:43 AM   #1
Havok10
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Default HVAC Blower Motor Stopped Working

All of a sudden in the hottest day of the year so far, the blower motor stopped working. It does not work in any fan position and the control panel lights and appears to be working.

This is a 2009 Saturn Aura XR. 3.6L.

Obvious things to test first are if the 20A or 40A fuses are blown which I have not done yet.

What else should i do? What are the proper steps to diagnose?
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Old 07-30-2015, 01:17 PM   #2
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Default Re: HVAC Blower Motor Stopped Working

First steps are checking for blown fuses as you already know. Some more history may help; car mileage and where you're located. Location may influence how often the blower motor is used )as in heavy a/c use in southern states). If fuses are good then visually checking blower wiring and connections are next.
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Old 07-30-2015, 02:35 PM   #3
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Default Re: HVAC Blower Motor Stopped Working

Car has about 75K miles and is located in CT.

I think the blower is on all the time because it is usually set to auto. It heats and cools when it needs too.

How many fuses inside would control the blower motor?

Any fuses in the engine that control the blower?
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Old 07-30-2015, 03:13 PM   #4
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Default Re: HVAC Blower Motor Stopped Working

Before getting ahead of yourself, go with your first hunch - check fuses. By giving more info, a full time blower may be worn out from near constant use. Second guessing doesn't help when a logical sequence is followed based on info given. If you have your owner's manual, it should list fuses.
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Old 07-30-2015, 09:39 PM   #5
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Default Re: HVAC Blower Motor Stopped Working

Tested all the regular fuses that are labeled HVAC. They all test fine.

There are some larger cartridge fuses for the AC clutch and such that I can not test but I think the blower would be separate from them.

Now what?
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Old 07-30-2015, 10:08 PM   #6
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Default Re: HVAC Blower Motor Stopped Working

And in post #2......visually checking the blower motor and wiring, connections for anything unusual?

Are you able to read wiring diagrams?
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Old 07-31-2015, 12:24 AM   #7
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Default Re: HVAC Blower Motor Stopped Working

i suspect if u put 12v across the blower it would run. the usual issue is with the automatic climate control head itself.
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Old 07-31-2015, 07:50 AM   #8
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Default Re: HVAC Blower Motor Stopped Working

How do I even get to the blower motor. Where is it located?
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Old 08-01-2015, 04:33 AM   #9
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Default Re: HVAC Blower Motor Stopped Working

Under the glove box. greenman suggests the auto climate control head is faulty so this adds another possibility. Perhaps cycling it off and back on may reset the computer module?
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Old 08-01-2015, 02:44 PM   #10
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Default Re: HVAC Blower Motor Stopped Working

in order to save a few cents gm integrated the BM into the bottom of the hvac box. so u have to cut it out if u need to remove it (aura, g6 & malibu will be pretty similar procedure):

http://www.g6performance.com/forum/s...ad.php?t=10764
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Old 08-02-2015, 08:40 AM   #11
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Default Re: HVAC Blower Motor Stopped Working

Thanks!! That helps a lot.

I should point out that everything started working fine for 2 days and then went out again. Blower motor worked on high, no noise. So as you have stated im sure its fine and has to electrical.

The ECM a connection, relay. Something intermittant.
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Old 08-02-2015, 03:06 PM   #12
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Default Re: HVAC Blower Motor Stopped Working

Quote:
Originally Posted by Havok10 View Post
Something intermittant.
here's a used one:

http://www.ebay.com/itm/2007-2008-20...torefresh=true

unknown if still available new.
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