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Unread 07-04-2013, 12:05 PM   #1
mfinn
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2014 JK Wrangler 
 
Join Date: Jan 2008
Location: Olympia WA
Posts: 94
heater vent problems

I have a 04 TJ that the heater vent control stopped switching between vent options.

Switched to the flow through option when I was using the ac. Went to change back to defrost in the morning and it didn't change even tho the knob moved. Knob moved with no resistance/clicking.

Is this a common problem?

Is it possible that something came unhooked?

How to fix?

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Unread 07-04-2013, 01:59 PM   #2
JEK3
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2006 LJ Wrangler 
 
Join Date: Jan 2010
Location: Fredericksburg, Virginia
Posts: 1,409
Pull the knob off (it pulls straight off, may have to pry it a bit with a screwdriver). See if there is any obvious damage.

If there's nothing wrong visibly, the shaft may have come loose inside the switch. It's not hard to pull the whole unit apart.
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Unread 07-04-2013, 02:23 PM   #3
Knuckelhead
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2000 TJ Wrangler 
 
Join Date: Aug 2005
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Quote:
Originally Posted by mfinn View Post
Went to change back to defrost in the morning and it didn't change even tho the knob moved. Knob moved with no resistance/clicking.
Sounds like you may have a cracked knob where it attaches to the switch post...
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Unread 07-04-2013, 02:39 PM   #4
mfinn
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2014 JK Wrangler 
 
Join Date: Jan 2008
Location: Olympia WA
Posts: 94
I looked at the knob first. Saw nothing ( didn't have glasses on).
Called around and found that if it was a control issue, the whole assembly ( fan, heat/cold, and vent ) would have to be replaced at a cost of about $95 ( after market )
Decided to look at the knob again ( thanks JEK3) and did see some cracks on the plastic. Used some pliers and realized that the control part worked.

Thanks
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