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displaying posts 1 to 14 of 14
| Author | Subject: a/c switch not working fan |
 diablowgti6
Newbie  Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #1
looking for some advice before i fix this properly (haha)..have been using the a/c switch to control my fan for a while, problem i have is its no longer working. The fan itself still works and the a/c button seems ok (light still works). any ideas? ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
 Posted 8th Jan 2011 at 03:33
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #2
30 views and no replys.. Off too a good start here________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 9th Jan 2011 at 00:46
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #3
A/C gas has probably leaked out.Unless you mean you've disconnected the pressure switch already in which case it will be some sort of electrical issue. ________________________________________ Rich |
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Posted 9th Jan 2011 at 01:01
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #4
yip gas long gone.. my problem is i was using the a/c button to work the engine cooling fan, and for some reason it no longer works (yet if i pull the brown relay under bonnet the fan kicks in) the only other issue i had was the blower motor also stopped working, but i stripped and cleaned that and its ok now  thanks for reply ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 9th Jan 2011 at 04:57
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #5
Sounds like it may be an issue with the low / high speed fan switching.Check the relays in the fan housing and go from there. ________________________________________ Rich |
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Posted 9th Jan 2011 at 05:10
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #6
i dont think you know what i mean with this  nothing has changed with regards to what fan works.. i bridged the(correct)pins on the air con plug to use a/c switch for fan... problem now is its not working the fan anymore, but the fan still works if i pull the brown plug??  ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 10th Jan 2011 at 01:06
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #7
anyone? ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 10th Jan 2011 at 20:10
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #8
Okay, when you pull the brown plug do you get both fans running together, both at low speed for a few seconds and then both switching to high speed?________________________________________ Rich |
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Posted 10th Jan 2011 at 20:11
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #9
i get one fan high speed only (been like this since i bought the car).. but when i use the a/c switch to control the fan the same fan does not work________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 10th Jan 2011 at 20:19
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #10
I suspected that might be the case. Your fans do not operate correctly. That's definitely part (if not all) of the problem. Both fans should run together, either both at low speed or both at high speed.The three relays in the fan cowling control the switching of the fans and high/low speed. I suspect the root cause of your problem is in there. Cooling fan system FAQ & circuit diagrams Start by putting 12v directly across the non-responsive fan to check for a dead motor. Then start looking at the relays. ________________________________________ Rich |
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Posted 10th Jan 2011 at 20:35
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #11
i had the bumper off last week to check wiring/connections etc. While the bumper was off i swapped the two relays (behind bumper) and still only had the same fan work.. sorry to go on and on, but my issue is when i bought the car the fans werent working, so i bridged the a/c plug to control the one working fan with the a/c button. (as many other people have) but now the a/c button wont work the fan (but the fan is still working)  ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 10th Jan 2011 at 20:48
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #12
Get the fans working properly first then look at the A/C switch.I suspect that once the fans are working correctly the switch will work again. ________________________________________ Rich |
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Posted 10th Jan 2011 at 20:50
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diablowgti6
Newbie Location: coatbridge Registered: 19 Aug 2010 Posts: 17 Status: Offline |
Post #13
think i know what you mean now, if i get a new changeover relay the fans should work as normal(then i can sort the air con)  thanks mate ________________________________________ oh s*it built on a thursdayMy other cars an 8v turbo |
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Posted 10th Jan 2011 at 20:51
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parkerpug
Regular  Location: STOKE ON TRENT Registered: 26 Jul 2009 Posts: 183 Status: Offline |
Post #14
hey did ya fix ya fans?? |
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Posted 17th Jan 2011 at 17:40
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