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Premium Member
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Discussion Starter · #1 ·
Ok, so now that the sun is here, and after having the gas changed the start of May.... my aircon has stopped working! So far, the relay and fuses seem to be ok but both fans at the front aren't turning, and the clutch isn't kicking in. Pressing the low line pressure valve in a bit, stuff is leaking out from the sounds of things, so it can't be empty. Shorting out the pressure switch pins (2 and 3) turns on both fans and engages the clutch for a few seconds, before the clutch disconnects and the fans slow and stop. I haven't got anyway to test just how much gas is in the system so will have to take it somewhere for testing. Anyone got any other ideas of what else it could be? Low gas due to leak? Low gas because it wasn't filled up to the correct pressure? A faulty pressure switch? Am just glad it isn't the clutch shim as I really didn't fancy tackling that!
 

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Don't just take it to Qwik Fit or some other muggy regas shop but to a proper AC specialist who can connect it up and check everything's working as it should. If you've already found a leak then it'll probably be that as AC doesn't like working when the system is compromised.
 

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i-Vtec
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4,545 Posts
Nothing will run if its low on gas but even with a leak there will still be pressure in there. Cheapest option is buy a new relay, think they run abut £6-10 on ebay. Just do it, it rules out the first known issue.
I had the same issue least year and as I knew everything else was ok I took a punt and bought a condenser. Fitted it in an hour, had it re gassed and Bobs your Mothers Brother, ice cold AC again.
The other known issue is that in warm weather the gap between the clutch and the compressor gets too big for the clutch to engage, but as yours is when you are jumping the pressure switch I think you can rule that out. TBH the clutch spacer isn't a bad job, its just removing the undertray that is the biggest PITA.
I used a Nissens 94875 condenser for my 1.8 and only paid £58, but looking on ebay they are ridiculous now for some unknown reason.
 

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It could be a leak or condenser problem.
I've had mine topped up yearly for the past 3 years or so by ATS via Groupon (35£ regas, offer is currently on). Before they start they tell me its completely empty. They run their tests and fill it up report that there's no leak and all is well. The ac would work for a couple of weeks before going warm a gain.
I'd suffer it as summer only lasts a few weekends in the uk so 35£ for a couple of weekends was OK seen as a condenser would cost around 350 for parts and labour.
My fault is either a leak or condenser problem.
This year, Ive bought myself those ebay seal and regas kits that come with 2 cans, with a couple of different nozzles to try ( the recommended screw type nozzle and also a trigger nozzle from Halfords).
Will do the job this Friday evening as I've got a hot safari trip on Saturday!
 

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AC isn't just for summer. Use it when its raining to de mist the windows. Use it to remove dampness from the inside. Air Conditioning is really the wrong word for it, its actually a dehumidifier that has the ability to cool.
Annoyingly when it's used to dehumidify it needs to be kept going otherwise the problem is worse than not using it at all.

I keep meaning to get RainX anti fog and the other stuff for the exterior but a tad lazy....
 

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Super Moderator
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3,347 Posts
I was looking at getting these guys in to do mine as it doesn’t blow as cold as I’d like this weekend
Plus it doesn’t blow cold on standard low setting(no air con on) it just blows warm.
surely on Lo the coldest it can do is blow ambient air from the outside?
if it's hot outside it will blow warm air into the car, if you want cold that's what the a/c is for
 

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i-Vtec
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please tell me that's an easy fix? only start doing this Saturday just gone as I was going through Starbucks.
Yes its not that hard from what ive seen. If you take the lower shroud off under the steering wheel you should be ale to see it. @Ashwin posted a pic a couple of weeks back.
 

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i-Vtec
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Annoyingly when it's used to dehumidify it needs to be kept going otherwise the problem is worse than not using it at all.
You dont have a choice, AC dehumidifies all the time, use the Recirc button to increase its effectiveness.
 

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AC isn't just for summer. Use it when its raining to de mist the windows. Use it to remove dampness from the inside. Air Conditioning is really the wrong word for it, its actually a dehumidifier that has the ability to cool.
Fortunately my cabin fans demist very well without the ac working.
 

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Premium Member
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170 Posts
Discussion Starter · #16 ·
Took it to an aircon place today, they said the compressor is broke. What's the compressor and is it an easy thing to replace? :D
 

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Get a second opinion. As compressors can be repaired or have bits changed, replacing the whole thing is expensive. Easy for the garage rather than diagnosing the issue further however.
 

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One Winged Angel
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I was looking at getting these guys in to do mine as it doesn’t blow as cold as I’d like this weekend
Plus it doesn’t blow cold on standard low setting(no air con on) it just blows warm.
I've booked these guys for next week for a diagnosis - £50 + VAT, but free if you then get the repair done.
Will update you once it's done if you like
 

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Took it to an aircon place today, they said the compressor is broke. What's the compressor and is it an easy thing to replace? :D
The compressor is the same thing as the clutch I believe? It's what makes the click sound when the ac turns on. It's a the very bottom of the belts on the right of the engine. It doesn't spin unless the ac has enough gas.
Seen as you have confirmed the relays and fuse are fine, I would advise buying this sealant and top up kit off eBay Car AC Aircon Air Con Top Up Leak Stopper Recharge Refill Regas DIY Gas Cans 685757152754 | eBay and a compatible hose attachment, I got this one https://www.amazon.co.uk/dp/B07CG4V...abc_EPMJMRQ7KD3DYY4B2JZQ?_encoding=UTF8&psc=1
I will try them Friday night on my car.
You could just have a small leak and it's worth 45£ to see if you can diy it.
 

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Premium Member
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170 Posts
Discussion Starter · #20 ·
The compressor is the same thing as the clutch I believe? It's what makes the click sound when the ac turns on. It's a the very bottom of the belts on the right of the engine. It doesn't spin unless the ac has enough gas.
Seen as you have confirmed the relays and fuse are fine, I would advise buying this sealant and top up kit off eBay Car AC Aircon Air Con Top Up Leak Stopper Recharge Refill Regas DIY Gas Cans 685757152754 | eBay and a compatible hose attachment, I got this one WINOMO R134A Air Conditioning Refrigerant Charging Hose with Gauge for Car (1/2 Thread for American and Europe): Amazon.co.uk: Car & Motorbike
I will try them Friday night on my car.
You could just have a small leak and it's worth 45£ to see if you can diy it.
Yeah, when I am free after this weekend am going to attempt to remove the bottom cover and see if I can get at the clutch shim and cut it off. If that fails will look at replacing the shim and see what happens.
 
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