Problems/Service/Repairs If you have a problem with your HHR, want a tip on repairing or performing a particular service to you HHR here is the place to post!

A/C Blower stopped. Magically working again?

Thread Tools
 
Search this Thread
 
Old 07-04-2019, 10:04 AM
  #1  
Senior Member
Thread Starter
 
Timewalker's Avatar
 
Join Date: 08-13-2010
Location: Memphis, TN
Posts: 111
A/C Blower stopped. Magically working again?

2011 LT 2.4 Auto

Ok, so we're visiting the in-laws two states away for the week.
The wife and I drive around her old hometown yesterday evening. Everything is fine. Cool air blowing.
We stop to do some shopping.
When we get back to the car after about an hour, the fan isn't blowing any air at any speed.
We can hear the compressor kick in, but no blowing.
I come here and search.
If it is the motor, I probably should have heard some noises before it died.
If it is the resistor, it would probably still run on high.
So it might be a short somewhere.
This morning I go out to check fuses and relays, and everything is working fine.
Has anyone run into this?
I really don't want to face an eight hour drive on Sunday in the heat with a dog in the backseat.
Thanks.
Timewalker is offline  
Old 07-04-2019, 10:10 AM
  #2  
Technical Moderator
 
donbrew's Avatar
 
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,697
Might be the fan switch.
Try pulling the cabin air filter out and spinning the fan.

On a bright note you don't really require the blower at highway speed.
donbrew is offline  
Old 07-04-2019, 11:37 AM
  #3  
Senior Member
Thread Starter
 
Timewalker's Avatar
 
Join Date: 08-13-2010
Location: Memphis, TN
Posts: 111
Thanks Don,

Pulled the filter.
Fan spins easily in both directions with a finger push.

Originally Posted by donbrew
Might be the fan switch.
Try pulling the cabin air filter out and spinning the fan.

On a bright note you don't really require the blower at highway speed.
Timewalker is offline  
Old 07-04-2019, 12:31 PM
  #4  
Senior Member
 
Cat Man HHR's Avatar
 
Join Date: 08-03-2010
Location: Lake Ronkonkoma, N.Y.
Posts: 3,564
Originally Posted by Timewalker
I really don't want to face an eight hour drive on Sunday in the heat with a dog in the backseat.
Open the windows, you all should be OK.
Wind noise, yes.
Can't hear the radio that good, yes.
Dog won't die. Unless the thing is a breed for cold climates.
Cat Man HHR is offline  
Old 07-04-2019, 12:45 PM
  #5  
Technical Moderator
 
donbrew's Avatar
 
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,697
Might see if the finger push will start it.

Sounding like the switch. It is not wired the way you think it is.

Note the switch supplies ground via the resistors. The fan has the always hot side.

donbrew is offline  
Old 07-04-2019, 01:43 PM
  #6  
Senior Member
Thread Starter
 
Timewalker's Avatar
 
Join Date: 08-13-2010
Location: Memphis, TN
Posts: 111
Ok, so I went back out and started the car again. The fan wasn't blowing.
I reached over and smacked the glove compartment.
It started blowing.
I probably should have done that last night.
Any idea what could be loose?
(Edit: the post about the switch hadn't shown up for me when I initially made this reply. Do you think it still might be the switch?)

Last edited by Timewalker; 07-04-2019 at 01:46 PM. Reason: New information
Timewalker is offline  
Old 07-04-2019, 01:47 PM
  #7  
Senior Member
 
Cat Man HHR's Avatar
 
Join Date: 08-03-2010
Location: Lake Ronkonkoma, N.Y.
Posts: 3,564
Originally Posted by Timewalker
Ok, so I went back out and started the car again. The fan wasn't blowing.
I reached over and smacked the glove compartment.
It started blowing.
I probably should have done that last night.
Any idea what could be loose?
Connection at the motor is my first thought.
Cat Man HHR is offline  
Old 07-07-2019, 03:34 PM
  #8  
Senior Member
Thread Starter
 
Timewalker's Avatar
 
Join Date: 08-13-2010
Location: Memphis, TN
Posts: 111
About two hours away from home. It's been not running when starting the engine most times today. Whacking the glove compartment worked fine for the first half of the drive, but then I started hearing a grind coming from the motor and it wouldn't run fast when it did start. Luckily, as noted above, it's still sending cool air at highway speeds.
I guess I will take it in tomorrow morning to see about getting the motor replaced.
Timewalker is offline  
Old 07-07-2019, 05:33 PM
  #9  
Technical Moderator
 
donbrew's Avatar
 
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,697
Sounds like the hamster wheel is trying to escape and rubbing.
donbrew is offline  
Old 07-09-2019, 11:06 AM
  #10  
Senior Member
Thread Starter
 
Timewalker's Avatar
 
Join Date: 08-13-2010
Location: Memphis, TN
Posts: 111
And it was working fine yesterday. No grinding or other noises. We'll see what today holds.
Timewalker is offline  


Quick Reply: A/C Blower stopped. Magically working again?



All times are GMT -5. The time now is 11:50 AM.