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Author Topic: Pressure switch  (Read 1940 times)

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Techno

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Pressure switch
« on: 28 January 2009, 16:12:51 »

Does anybody know where the low pressure switch/sensor is on the aircon system?
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TheBoy

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Re: Pressure switch
« Reply #1 on: 28 January 2009, 17:48:43 »

On A/C pipe near rad.  The switch itself is pretty reliable, far more likely to be a (lack of) refridgerant problem
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Techno

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Re: Pressure switch
« Reply #2 on: 28 January 2009, 17:57:32 »

 Ok, its bloody odd I only had it re-gassed in Oct and it packed up by Dec.  

I've checked the whole system (that I can see) and there is no trace of dye anywhere  >:(

The guy pressure checked the system for about an hour and there was no loss, he said if was was a leak it would have showed up in that time by a slight pressure drop.

I'm really not going to waste another call out fee until I've made sure the switch is working.  I suppose it could be the clutch how can I test this or loop it so it should run?

Bloody annoying £70 possibly wasted  >:(      
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TheBoy

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Re: Pressure switch
« Reply #3 on: 28 January 2009, 17:59:42 »

Quote
Ok, its bloody odd I only had it re-gassed in Oct and it packed up by Dec.  

I've checked the whole system (that I can see) and there is no trace of dye anywhere  >:(

The guy pressure checked the system for about an hour and there was no loss, he said if was was a leak it would have showed up in that time by a slight pressure drop.

I'm really not going to waste another call out fee until I've made sure the switch is working.  I suppose it could be the clutch how can I test this or loop it so it should run?

Bloody annoying £70 possibly wasted  >:(      
Live data, iirc, can tell you if its over pressure or under pressure (I'd need to double check).

I'll wager a pound its got a leak...
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Techno

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Re: Pressure switch
« Reply #4 on: 28 January 2009, 18:00:34 »

Yer I bet but where?
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TheBoy

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Re: Pressure switch
« Reply #5 on: 28 January 2009, 18:01:39 »

Quote
Yer I bet but where?
condensor is favourite
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Techno

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Re: Pressure switch
« Reply #6 on: 28 January 2009, 18:03:28 »

I'm guessing you cant see that?  

Where is it and how do you get at it do you know?
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Andy B

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Re: Pressure switch
« Reply #7 on: 28 January 2009, 18:54:17 »

Quote
Quote
Yer I bet but where?
condensor is favourite

My leak was the compressor.  :(
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Andy B

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Re: Pressure switch
« Reply #8 on: 28 January 2009, 18:55:15 »

Quote
I'm guessing you cant see that?  

Where is it and how do you get at it do you know?
The condensor is the 'radiator' infront of the main cooling rad.
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Techno

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Re: Pressure switch
« Reply #9 on: 28 January 2009, 21:29:04 »

Quote
Quote
Quote
Yer I bet but where?
condensor is favourite

My leak was the compressor.  :(

I've checked all around that no dye
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Techno

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Re: Pressure switch
« Reply #10 on: 28 January 2009, 21:30:17 »

Quote
Quote
I'm guessing you cant see that?  

Where is it and how do you get at it do you know?
The condensor is the 'radiator' infront of the main cooling rad.

Hmm cant say I've completely checked this but I will do.  
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Techno

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Re: Pressure switch
« Reply #11 on: 29 January 2009, 17:39:27 »

Quote
Quote
Quote
I'm guessing you cant see that?  

Where is it and how do you get at it do you know?
The condensor is the 'radiator' infront of the main cooling rad.

Hmm cant say I've completely checked this but I will do.  

I've checked it and I can't find any dye traces?
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philhoward

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Re: Pressure switch
« Reply #12 on: 31 January 2009, 10:17:08 »

I thought the dye they put in was UV sensitive - i.e. will only show up under a UV light..?  Half a chance that all the recent wet weather has washed it all off by now..
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Running an X30XE in a Reliant Scimitar GTE as I can't have an Omega as a company car...
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