Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 01-25-2013, 12:10 PM   #1
jmd
Registered User
 
Join Date: Dec 2012
Location: UK
Posts: 10
Climate control problem

Hi Guys, New to Boxster's and the forum. Have a 2003 S with a faulty climate control system I'm looking for some info on.

The problem is, If the temperature is set to high, hot air comes out fine, anything under high, ie 29.5, blows cold air. I've been doing a bit of research on this but would like to confirm my suspicions before taking anything apart.

Where are the temperature sensors for the interior? I know there is one under the dash on the airflow path and possibly one in the housing on the middle of the top dash, where the alarm light is? Are there any others?

My guess is that one of these has failed and is constantly reading high, hence the control unit thinking the temperature is always high, the HI setting overrides the sensor and then blows hot.

Do you think I'm on the correct track?

Thanks

jmd is offline   Reply With Quote
Old 01-25-2013, 12:41 PM   #2
Registered User
 
Auf los!'s Avatar
 
Join Date: Nov 2008
Location: Wilton, CT
Posts: 187
AFAIK, there is only one automatic climate control temperature sensor in the interior. It is in the far right (passenger-side) of the dash, behind the circular grille below the air vent. It is in the opposite position of the headlight switch, in other words. You can either pull out the circular fitting from the vent housing, or remove two Torx screws from the side of the vent housing and wrestle the vent housing off the end of the dash. I've done that and handled the sensor a couple of times. Good luck!
Auf los! is offline   Reply With Quote
Old 01-25-2013, 01:35 PM   #3
1999 base
 
Meir's Avatar
 
Join Date: Dec 2011
Location: Coral Springs FL
Posts: 1,586
Garage
Quote:
Originally Posted by Auf los! View Post
AFAIK, there is only one automatic climate control temperature sensor in the interior. It is in the far right (passenger-side) of the dash, behind the circular grille below the air vent. It is in the opposite position of the headlight switch, in other words. You can either pull out the circular fitting from the vent housing, or remove two Torx screws from the side of the vent housing and wrestle the vent housing off the end of the dash. I've done that and handled the sensor a couple of times. Good luck!
correct.
just on a UK car, it will be on the left air vent.
Meir is offline   Reply With Quote
Old 01-25-2013, 01:44 PM   #4
jmd
Registered User
 
Join Date: Dec 2012
Location: UK
Posts: 10
That's definitely a start then, I was looking in completely the wrong place. Tomorrow's job to get that out for testing then.
jmd is offline   Reply With Quote
Old 03-27-2014, 07:04 AM   #5
Registered User
 
Join Date: Oct 2009
Location: Boston
Posts: 1
Climate control issue

I have the same issue on my 2000 S. Original owner, 70K miles. I had an independent mechanic tell me it would be $400 to send out the control unit to recalibrate.

JMD: I'm wondering if you resolved your issue and if you found the sensor had failed?

I've been operating AC and heat in "manual" mode for a couple of years and getting tired of either freezing or boiling, never being just right!

Thanks.

Peter
tmp6780 is offline   Reply With Quote
Old 03-26-2016, 10:13 PM   #6
Registered User
 
Join Date: Mar 2016
Location: London
Posts: 1
Aircon issues

Hi, I have exactly the same problem as you stated. An auto aircon mechanic analysed that the interior temp sensor was at fault and telling the car that it was 48 degrees inside! Hence the car immediately went into full cooling mode. The mechanic quoted 48 for the part but then told me that it was gonna be more like 200 plus labour etc. So I told him that I would first check whether there was a faulty connection issue before paying out. My issue is that I can't locate it. I have a right hand drive, 2001, 3.2S. I was told it was behind the right hand side vent but I couldn't see it.
Please can you help me? And did you resolve your problem? Many thanks,Victor.
Victor Pajak is offline   Reply With Quote
Old 03-27-2016, 04:21 AM   #7
2003 Base 5-speed
 
grc0456's Avatar
 
Join Date: Jul 2015
Location: Stoneham, MA
Posts: 906
Garage
Quote:
Originally Posted by Victor Pajak View Post
Hi, I have exactly the same problem as you stated. An auto aircon mechanic analysed that the interior temp sensor was at fault and telling the car that it was 48 degrees inside! Hence the car immediately went into full cooling mode. The mechanic quoted 48 for the part but then told me that it was gonna be more like 200 plus labour etc. So I told him that I would first check whether there was a faulty connection issue before paying out. My issue is that I can't locate it. I have a right hand drive, 2001, 3.2S. I was told it was behind the right hand side vent but I couldn't see it.
Please can you help me? And did you resolve your problem? Many thanks,Victor.
It should be on the passenger side (left) for a UK car. Right under the vent.
grc0456 is offline   Reply With Quote
Old 11-28-2016, 04:25 PM   #8
Registered User
 
Join Date: Nov 2016
Location: Somerset
Posts: 3
Hi, I know this is 3 years down the road, but I have the same problem with climate control, that is only blows hot if set on HI. Did you ever fix the problem. You do not seem to of had any replies to your question?
mahadevdave is offline   Reply With Quote
Old 11-29-2016, 11:50 AM   #9
Registered User
 
Join Date: Mar 2015
Location: Pacific northwest
Posts: 42
Well, I have the same problem and have found no answers in two years of searching. Just like you, only get heat on "HI". Changed out sensor but that didn't do it.

I have learned to live with it.
Roger1965 is offline   Reply With Quote
Old 11-29-2016, 12:18 PM   #10
Custom User Title Here
 
particlewave's Avatar
 
Join Date: Mar 2012
Location: WA
Posts: 6,087
Garage
The heater core is always hot. The heater core flap blocks it off on lower temp settings and gradually opens to allow air to flow over it as you raise the temp relative to the ambient cabin temp.

Remove the center console facia and center vent. Look at the heater core flap and see if it's missing foam. Next, run the climate control from low temp to high temp while watching the flap. It should move gradually as you adjust temp. Report back with results.

particlewave is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 01:55 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page