Air Con problem C5 2003
  • Register
  • Help
Results 1 to 10 of 10
Like Tree1Likes
  • 1 Post By The Dunk

Thread: Air Con problem C5 2003

  1. #1
    Member
    Join Date
    Mar 2015
    Location
    Kingscliff NSW Australia
    Posts
    61

    Default Air Con problem C5 2003

    Hi All, My C5 has been going great for the last year after I had a 2nd hand auto box fitted plus new fuel injectors . Now my air con turns itself off after a few minutes . The fan indicator goes to zero. Then maybe 10 mins later it will kick back in for another minute then off again. Could this be a sign that it needs re gassing? Had a problem previous with hot air on passengers side while cold air drivers side, found that by pulling out a/c fuse and replacing fixed ok, but no help with this new problem.
    regards
    The Dunk

    Advertisement

  2. #2
    Administrator GreenBlood's Avatar
    Join Date
    Mar 2001
    Location
    Brisbane
    Posts
    8,159

    Default

    Quote Originally Posted by The Dunk View Post
    Hi All, My C5 has been going great for the last year after I had a 2nd hand auto box fitted plus new fuel injectors . Now my air con turns itself off after a few minutes . The fan indicator goes to zero. Then maybe 10 mins later it will kick back in for another minute then off again. Could this be a sign that it needs re gassing? Had a problem previous with hot air on passengers side while cold air drivers side, found that by pulling out a/c fuse and replacing fixed ok, but no help with this new problem.
    regards
    The Dunk
    Sounds like the heater blower resistor is overheating, it may be as simple as removing applying heat sink goop and replacing.
    Have a look here for more info
    C5 interior fan problem

    If it is the problem you can make a repair by soldering in a new mosfet - or, if you can wait you can buy a replacement unit out of China for as little as $18.50 delivered.
    Heater Blower Motor Resistor FOR Peugeot Renault Citroen C2 C3 C5 6441L2 GS | eBay

    Cheers
    Chris
    74 D(very Special) >>Rejuvenation Thread<<
    08 C5 X7 HDi very Noir



    "Déesse" Roland Barthes, 'Mythologies', 1957

    The Déesse has all the characteristics of one of those objects fallen from another universe that fed the mania for novelty in the eighteenth century and a similar mania expressed by modern science fiction: the Déesse is first and foremost the new Nautilus.

    (Umberto Eco [Ed], The History of Beauty, Rizzoli, NY, 2004)

  3. #3
    Member
    Join Date
    Mar 2015
    Location
    Kingscliff NSW Australia
    Posts
    61

    Default Air Con C5 problem

    Quote Originally Posted by GreenBlood View Post
    Sounds like the heater blower resistor is overheating, it may be as simple as removing applying heat sink goop and replacing.
    Have a look here for more info
    C5 interior fan problem

    If it is the problem you can make a repair by soldering in a new mosfet - or, if you can wait you can buy a replacement unit out of China for as little as $18.50 delivered.
    Heater Blower Motor Resistor FOR Peugeot Renault Citroen C2 C3 C5 6441L2 GS | eBay

    Cheers
    Chris
    Thanks so much GreenBlood, looks like you found my problem on my way now to remove the part.
    get back to you.

  4. #4
    1000+ Posts
    Join Date
    Nov 2010
    Location
    Newcastle
    Posts
    2,572

    Default

    Hi Dunk,
    The hot and cold problem is most likely a different one Common !! It will return.
    Search for it on here. It is usually a flap failure on the passenger side. It can be fixed too.
    search ; C5 flap, or C5 hot and cold air. Read a few threads
    Jaahn

  5. #5
    Member
    Join Date
    Mar 2015
    Location
    Kingscliff NSW Australia
    Posts
    61

    Icon7 Air Con C5 problem

    Quote Originally Posted by GreenBlood View Post
    Sounds like the heater blower resistor is overheating, it may be as simple as removing applying heat sink goop and replacing.
    Have a look here for more info
    C5 interior fan problem

    If it is the problem you can make a repair by soldering in a new mosfet - or, if you can wait you can buy a replacement unit out of China for as little as $18.50 delivered.
    Heater Blower Motor Resistor FOR Peugeot Renault Citroen C2 C3 C5 6441L2 GS | eBay

    Cheers
    Chris
    Hi GreenBlood,
    I managed to remove unit ok went to Jaycar purchased sensor and tube of heat transfer gunk.
    After reading other posts on the same subject I have tried cleaning old silicone from back of sensor and replacing with new silicone, reassembling unit back in car and presto it`s working ok so far on a short run.
    I will give a longer run tomorrow. If it fails again I will replace the sensor with soldering iron as you instructed. I have taken photos but yet to work out how to get them off my phone onto this post
    I will have to ask my wife (Mrs Google) to help with that.

    Thanks so much for the expert help, it has cost me $9 where I was thinking of taking it to a A/C specialist and taking a 2nd mortgage on the house.
    GreenBlood likes this.

  6. #6
    Member
    Join Date
    Mar 2015
    Location
    Kingscliff NSW Australia
    Posts
    61

    Default

    Quote Originally Posted by The Dunk View Post
    Hi GreenBlood,
    I managed to remove unit ok went to Jaycar purchased sensor and tube of heat transfer gunk.
    After reading other posts on the same subject I have tried cleaning old silicone from back of sensor and replacing with new silicone, reassembling unit back in car and presto it`s working ok so far on a short run.
    I will give a longer run tomorrow. If it fails again I will replace the sensor with soldering iron as you instructed. I have taken photos but yet to work out how to get them off my phone onto this post
    I will have to ask my wife (Mrs Google) to help with that.

    Thanks so much for the expert help, it has cost me $9 where I was thinking of taking it to a A/C specialist and taking a 2nd mortgage on the house.
    Now I have taken the car on a longer trip and found the fan failed again with outside temp over 30c.
    So removed unit again and replaced mosfet from Jacar and still same problem.
    Looks like I should now order a replacement unit from china.

  7. #7
    Fellow Frogger! JAJEA's Avatar
    Join Date
    Apr 2013
    Location
    Essendon
    Posts
    647

    Default

    Trust you have checked /read previous postings.

    The problem I believe (and others agree) is that the (around 11 gauge) the humongous ~5mm2 cables powering the Ac controller being attached to the control unit via 3mm spade terminals is insufficient if there is any looseness in the connections. Check the condition of the terminals within the connectors.

    I have done away with the 2 cable terminal block and replaced the 3mm spade terminals. Things worked well for 12+ months and it has now packed up again!

    The 2 replaced terminal are OK but the powered red terminal with in the bigger terminal is completely burned out. Burned terminal do not conduct current too well. Another job to do when I able to crawl in there.

    Regards,

    John


    Quote Originally Posted by The Dunk View Post
    Now I have taken the car on a longer trip and found the fan failed again with outside temp over 30c.
    So removed unit again and replaced mosfet from Jacar and still same problem.
    Looks like I should now order a replacement unit from china.

  8. #8
    Tadpole
    Join Date
    Nov 2010
    Location
    perth
    Posts
    15

    Default

    I had the hot cold problem with my C5. I had the A/C regassed and it is all fixed.

    Quote Originally Posted by jaahn View Post
    Hi Dunk,
    The hot and cold problem is most likely a different one Common !! It will return.
    Search for it on here. It is usually a flap failure on the passenger side. It can be fixed too.
    search ; C5 flap, or C5 hot and cold air. Read a few threads
    Jaahn

  9. #9
    Fellow Frogger! JAJEA's Avatar
    Join Date
    Apr 2013
    Location
    Essendon
    Posts
    647

    Default

    Here is photos of AC controller removed by friend and I refused to plug in a replacement unit when I had noticed the burned out 3mm male terminal within the bigger plug component The female 3mm terminal within the bigger plug is in similar condition. The smaller 2 terminal plug is where I had replaced the 3mm terminals. Nothing wrong with them this time. I had made sure that the new terminals were a tight squeeze by physically squeezing the new terminals to ensure a proper/good electrical connection to accommodate whatever the 30 Amp fuse dishes out - however , I did not touch the terminals within the bigger plug. What I had Air Con problem C5 2003-img_4557.jpgAir Con problem C5 2003-img_4558.jpg

    previously believed to be cold solder joints was simply the solder melting away due to over heating as evidenced in the second photo. There is no evidence of overheating / cold joints in the other 2 terminals that had the replacement 3mm female terminals (minus the plug) that were previously a problem.

    So, whilst there maybe other issues as to a non operational climate control system in your C5 - make sure that the terminals are transferring the full 30 amps going to the AC unit (I think it is a 30 amp fuse by memory).

    Regards,
    John

    Quote Originally Posted by JAJEA View Post
    Trust you have checked /read previous postings.

    The problem I believe (and others agree) is that the (around 11 gauge) the humongous ~5mm2 cables powering the Ac controller being attached to the control unit via 3mm spade terminals is insufficient if there is any looseness in the connections. Check the condition of the terminals within the connectors.

    I have done away with the 2 cable terminal block and replaced the 3mm spade terminals. Things worked well for 12+ months and it has now packed up again!

    The 2 replaced terminal are OK but the powered red terminal with in the bigger terminal is completely burned out. Burned terminal do not conduct current too well. Another job to do when I able to crawl in there.

    Regards,

    John

  10. #10
    Contented Peugeot Driver addo's Avatar
    Join Date
    Jun 2005
    Location
    Don't remind me!
    Posts
    16,609

    Default

    It's almost "dreaming the impossible dream" the way they are wired relative to service demands in a hot climate. The best (in effectiveness) repaired blower fan in my collection of PSA cars, has been hard wired from the controller PCB. The joints get hot alright but the solder doesn't melt. If anyone else tries such a caper, I suggest adding in 2" lengths of wire off the PCB and then joining it - plus heatshrink of course. Makes for easier soldering!

    Cheers, Adam.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •