I thought that was the point of having aircon in the UK given it's not very often it's hot enough to need it for cooling
Just in case anyone is unaware, you can use the aircon in winter with the heating on to rapidly dry the air in the car and de-fog the windows. Works a treat.
Just had a look on ToyoDIY and can't see the 'O' rings listed Jon.... any idea where I can find the part numbers?.... The condenser and dryer joints are the first place I'd look for leaks on an 80 as so many have needed new o-rings and cleaned up joins there. Mine needed one new pipe and new o-rings but could really have done with another pipe changing but a bit of sealant did the job
As mine is a 1992 model it used to have the now banned R12 gas, the drop in replacement now being R426A.
If I'm going to do a major overhaul, might now be a wise time to move to the newer R134A gas? If so what parts will I HAVE to change to drop this gas in?
I'm guessing the parts Jon has listed for the 93> model will 'physically' fit my system, but it might mean replacing the compressor too if I want to move to the later gas?
Hi Bat, it sounds to me like you could have some sort of blockage, possibly moisture in the system freezing in the expansion valve. The cure is to recover the gas, change the filter drier, flush with dry nitrogen, Put it on vacuum for a minimum of an hour, ideally longer, then weigh in the correct amount of gas. The continuous running sounds odd though and could point to a relay with welded contacts or too much gas not allowing it to cycle on pressure. A proper refrigeration engineer should be able to sort it out for you. I expect you'll find one or two in the states. just get a good one that works on anything not just vehicles or at least one that's recommended.
It's one possible, and always tricky diagnosing from afar but if the guy is any good he should tell you before you tell him.StarCruiser - Ok. When I settle on an engineer I'll relay your advice. Thanks.