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20th April 2019, 18:22 | #1 |
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Air con
I have not yet owned my 1.8t in hot weather (but I hope to soon!). Problem is the air con is not working. Is it likely to simply need re gassing or is there anything else I should look out for? Advice would be appreciated.
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20th April 2019, 19:00 | #2 |
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Check that the low speed radiator fan works as it should. The aircn system uses it to operate. Search for 'Demist Test' to find how to test it. If the fan doesn't work it'll need the low speed resistor replacing. These are vailable from forum traders, eBay and electronics outlets. Loads of threads on this including HowTos.
If the low speed fan is OK, check that the condenser mounted on the front of the main radiator has plenty of fins left. They lose the finning after a few years and the aircon needs this to operate. You have to remove the front bumper to check. Finally, have the aircon system checked over by an aircon specialist and regassed if necessary. TC |
20th April 2019, 19:37 | #3 |
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Air con
Thanks for that. Seems like there's more to it than I thought!
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20th April 2019, 22:34 | #4 |
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If you take it to an aircon depot first, they ought to be able to diagnose any of the factors that will cause it not to operate. The chances are it simply needs a regas, but those other things are vitally important.
TC |
20th April 2019, 23:37 | #5 |
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Also check the wire that goes down to actuate the compressor....when my AC stopped working my wire was completely missing. What had happened was in the winter my auxhillary belt had snapped and unbeknown to me also ripped out this actuating wire. When i switched the aircon on in spring I got no cold air at all as the compressor wasnt engaging.
Bit of a long shot but worth a check to see the wire is in place and plugged in
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21st April 2019, 06:34 | #6 |
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NOW a Club Tourer was 1999 - 75 2.0Ltr Connoisseur SE petrol Saloon Join Date: Jan 2012
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As T-Cut states take it to an AC specialist. I didn't do that and ended up buying a pump and the condenser/desiccant unit plus a lot of other bits. It turned out to be just the condenser/desiccant.
Jules supplied all the bits and the knowledge!
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17th March 2020, 17:24 | #7 | |
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Air condition wiring
Quote:
Many thanks Fred |
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17th March 2020, 17:33 | #8 | |
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Quote:
When i investigated mine, there was a oily stain around one of the pipe on the condenser and when I looked closer the fins in the condenser were also falling apart so ended up replacing it with a new one. I got a mobile air con engineer to come and do mine, first degas it and then re-gas and test before putting the front end back together (much better to do that than find out it leaks after you've put the front end on) |
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18th March 2020, 07:44 | #9 | |
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Quote:
Simon
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23rd May 2020, 19:05 | #10 |
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Am having an air-con problem.
System had a re-gas last June. The fan was replaced a few years ago. Have used the system periodically through the winter to keep it oiled. Demist test shows fan changing from low to high speed (late car with just two speeds). Compressor engages when air con selected so must have gas. Simply no chilled air at vents System test holding Auto and distribution buttons gives FC 00 so looks fault free. Thinking it might be the fins on the condenser but before I take the bumper off can anyone suggest any other things to check ? Many thanks |
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