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ebrian0 Newbie
Joined: 03 Sep 2021 Posts: 7 Location: Somerset
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Posted: Sat Oct 16, 2021 19:43 Post subject: Aircon low pressure sensor lc5 |
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Is the low pressure sensor located in the boot? |
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Posted: Sat Oct 16, 2021 19:43 Post subject: Google Ads keep this community free to join! |
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Tractionman ******
Joined: 07 Apr 2007 Posts: 821 Location: Bournemouth, Dorset
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Posted: Sat Oct 16, 2021 20:32 Post subject: |
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As far as I'm aware the H and L are under the bonnet where the rest of the A/C installation is. It makes no sense to put it at the opposite end anyway, even if you have the model lc5 with rear passenger controls.
Maybe someone else more knowledgable will be along to confirm, or not ? |
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TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
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Posted: Sun Oct 17, 2021 7:27 Post subject: |
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When you say low pressure sensor , do you mean the low pressure port (that you fill the A/C gas from ) if so its under the bonnet on the drivers side between the front of the airfilter box and the side of the radiator it has a grey cap with L on that you unscrew to top up the A/C . |
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Tractionman ******
Joined: 07 Apr 2007 Posts: 821 Location: Bournemouth, Dorset
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Posted: Sun Oct 17, 2021 9:38 Post subject: |
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Nice one Tony. |
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ebrian0 Newbie
Joined: 03 Sep 2021 Posts: 7 Location: Somerset
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Posted: Sun Oct 17, 2021 16:08 Post subject: |
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Thanks for the replies, its an lc5 with controles in the rear.
I found the high and low in the engine bay.Its been re gased and holds pressure ok.
When the clutch relay is bypassed the compressor kicks in and blows cold ok.
However I'm getting 12v briefly at the clutch relay then it dissappear and the air con symbol flashes and compressor does not kick in.
I'm guessing its some sort of logic faults stopped it running .
I'm thinking its the sensor on the low pressure side but can't locate it or does the senor on the high pressure side do both |
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TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
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Posted: Sun Oct 17, 2021 17:13 Post subject: |
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The A/C relay is known to fail after around ten years , so much so that I have bought a spare for if or when mine fails , the part numbers on mine which has A/C in the back is 90987-02028 and under those numbers are 156700-3290 and is made by DENSO , got my my spare one from e bay cost was 6 quid . seems to me yours has failed . |
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Tractionman ******
Joined: 07 Apr 2007 Posts: 821 Location: Bournemouth, Dorset
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Posted: Sun Oct 17, 2021 17:43 Post subject: |
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Try swapping the front fog light relay for the a/c relay in the main fuse box in engine bay as a double check. Both the same. |
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TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
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Posted: Sun Oct 17, 2021 18:15 Post subject: |
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if they are both the same thats a brilliant idea Tractionman , |
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Tractionman ******
Joined: 07 Apr 2007 Posts: 821 Location: Bournemouth, Dorset
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Posted: Sun Oct 17, 2021 18:58 Post subject: |
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Yep, I'm full of 'em Tony, still trying to catch up with you though. Good call with relay, often overlooked.
I've used that swap trick before, with relays bulbs and fuses, but can't claim fùll credit in this scenario as it came from Trevor yonks ago when he had a/c problems like that. |
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ebrian0 Newbie
Joined: 03 Sep 2021 Posts: 7 Location: Somerset
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Posted: Thu Oct 21, 2021 20:49 Post subject: |
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Many thanks all now working.
It was the relay id checked the primary but did not check it actually had output |
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Tractionman ******
Joined: 07 Apr 2007 Posts: 821 Location: Bournemouth, Dorset
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Posted: Thu Oct 21, 2021 21:20 Post subject: |
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😀👌 |
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