Climate control temperature knob doesn't work - Jeep Commander Forums: Jeep Commander Forum
Regular Service / Maintenance This section contains discussion about regular service and maintenance (upkeep) of your Jeep Commander

 1Likes
  • 1 Post By ste9063
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 03-02-2018, 10:40 AM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Climate control temperature knob doesn't work

A few days ago my wife said the the AC wouldn't kick on, that it was just blowing warm air. After I check it out, I could hear the compressor engage when I pressed the button. But it definitely didn't cool anything. I didn't have time to check any more into it at the time. Then my wife told me that she fiddled with the knob the next day and it started blowing cold air, kind of strange... so last night I an running some errands and it has dropped in temp and is snowing, but now it only blows cold air and not warm/hot. Could it be that the knob is just busted on the inside? How do I take that apart to look at it? Or is there something else I should check first?

FYI - coolant level is good, engine rises to running temp but never above normal, and the coolant return is warm. Also, the 3rd row climate control works just fine, air is nice and warm blowing from there.

--2009 4.7L QT2

--ste9063
ste9063 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 03-03-2018, 08:21 AM
Senior Member
Points: 16,175, Level: 81 Points: 16,175, Level: 81 Points: 16,175, Level: 81
Level up: 65% Level up: 65% Level up: 65%
Activity: 14% Activity: 14% Activity: 14%
 
Join Date: May 2006
Location: Orlando, FL
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QD-II
Current Mileage: 165,000
Posts: 1,472
Do you have the single or dual control type?
Creek is offline  
post #3 of 10 (permalink) Old 03-03-2018, 10:02 AM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Quote:
Originally Posted by Creek View Post
Do you have the single or dual control type?
Single zone

--ste9063
ste9063 is offline  
 
post #4 of 10 (permalink) Old 03-03-2018, 08:10 PM
Senior Member
Points: 16,175, Level: 81 Points: 16,175, Level: 81 Points: 16,175, Level: 81
Level up: 65% Level up: 65% Level up: 65%
Activity: 14% Activity: 14% Activity: 14%
 
Join Date: May 2006
Location: Orlando, FL
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QD-II
Current Mileage: 165,000
Posts: 1,472
I have the dual control, but I know blend doors and gears are a problem, do a search on blend doors and see what you find.
Creek is offline  
post #5 of 10 (permalink) Old 03-08-2018, 02:11 PM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Quote:
Originally Posted by Creek View Post
I have the dual control, but I know blend doors and gears are a problem, do a search on blend doors and see what you find.
Seems like that could be a possible cause, I'll have to check it out. Thanks.

--ste9063
ste9063 is offline  
post #6 of 10 (permalink) Old 03-08-2018, 05:26 PM
Super Moderator
Points: 23,378, Level: 94 Points: 23,378, Level: 94 Points: 23,378, Level: 94
Level up: 3% Level up: 3% Level up: 3%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 101,200
Posts: 5,328
Garage
Quote:
Originally Posted by ste9063 View Post
Seems like that could be a possible cause, I'll have to check it out. Thanks.
Here is a pretty good thread about it that has alot of details including part numbers.

Part # 68017816AB for fresh air/recirc air door part.

Part # 5143192AA actuator for heater doors.

There is also a plastic gear on the actuator/recirculation door that tends to break off or the teeth on the plastic gear actually strip.

Recirculation Door Stays Open

Here is another pretty good thread on the subject:

Blower fan working but no air movement


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Big Blue is offline  
post #7 of 10 (permalink) Old 03-09-2018, 08:17 AM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Quote:
Originally Posted by Big Blue View Post
Here is a pretty good thread about it that has alot of details including part numbers.

Part # 68017816AB for fresh air/recirc air door part.

Part # 5143192AA actuator for heater doors.

There is also a plastic gear on the actuator/recirculation door that tends to break off or the teeth on the plastic gear actually strip.

Recirculation Door Stays Open

Here is another pretty good thread on the subject:

Blower fan working but no air movement

Thanks, Blue. I'll read through these. This weekend I plan to check the blend door, unless something changes.
Big Blue likes this.

--ste9063
ste9063 is offline  
post #8 of 10 (permalink) Old 03-14-2018, 07:41 AM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Quote:
Originally Posted by Big Blue View Post
Here is a pretty good thread about it that has alot of details including part numbers.

Part # 68017816AB for fresh air/recirc air door part.

Part # 5143192AA actuator for heater doors.

There is also a plastic gear on the actuator/recirculation door that tends to break off or the teeth on the plastic gear actually strip.

Recirculation Door Stays Open

Here is another pretty good thread on the subject:

Blower fan working but no air movement

Turns out the plastic gear was broken off the door. Replacing the whole blend door looks like a huge job. So I took a square steel rod, heated it way up with a blowtorch, then used that to fuse to plastic gear back onto the door. working good so far.

--ste9063
ste9063 is offline  
post #9 of 10 (permalink) Old 03-18-2018, 08:13 PM
Super Moderator
Points: 23,378, Level: 94 Points: 23,378, Level: 94 Points: 23,378, Level: 94
Level up: 3% Level up: 3% Level up: 3%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 101,200
Posts: 5,328
Garage
Quote:
Originally Posted by ste9063 View Post
Turns out the plastic gear was broken off the door. Replacing the whole blend door looks like a huge job. So I took a square steel rod, heated it way up with a blowtorch, then used that to fuse to plastic gear back onto the door. working good so far.
That's pretty common, I suspected that could be the problem.

Your solution was creative, nice work.

Hopefully it doesn't break again.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Big Blue is offline  
post #10 of 10 (permalink) Old 03-19-2018, 09:51 AM Thread Starter
Member
Points: 3,467, Level: 36 Points: 3,467, Level: 36 Points: 3,467, Level: 36
Level up: 78% Level up: 78% Level up: 78%
Activity: 0% Activity: 0% Activity: 0%
 
ste9063's Avatar
 
Join Date: Jan 2014
Location: US
Own a Commander?: Yes
Model year: 2009
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 125000
Posts: 41
Garage
Quote:
Originally Posted by Big Blue View Post
That's pretty common, I suspected that could be the problem.

Your solution was creative, nice work.

Hopefully it doesn't break again.
Thanks. If it breaks again I doubt I have another option but to replace. Which will be a huge pain...

--ste9063
ste9063 is offline  
Sponsored Links
Advertisement
 
Reply

  Jeep Commander Forums: Jeep Commander Forum > Jeep Commander Discussion > Regular Service / Maintenance

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Jeep Commander Forums: Jeep Commander Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome