Thread: PUMA air-con issues

Originally Posted by mickygee

my air-con will only blow cold for about 30mins then it starts to loose coldness. iv'e taken it to the dealer 3 times and they seem to be at a loss as to what is wrong. now i know i am not the only one with this issue, so if any one has actually had the problem resolved i would be grateful for some guidance and suggestions to the dealer.
BTW it all started when the condenser(or coil?) not sure, froze up and they changed valves.

regards, Michael

I had exactly the saem problem and when I took it to the the dealer they siad they had had "a few" of these recently and fixed it without any fuss.

That seems to be fixed but they damaged the dash taking it out and buggered one of the A/C control switches in the process. Still trying to get a fix answer from them.

It could be a number of things: Short of refrigerant, excess refrigerant, control issue, clogged heat exchanger, incorrect refrigerant, moisture, air or non-condensibles to name a few.
Why did they change the valve? Was it the expansion valve? Has it got the original refrigerant & oil types in it? Other than this issue & the frozen coil, have you had any other problems?
Car A/C is not my speciality, but frankly I don't trust garages to even know the condenser from the evaporator. I'd take it to a refrigeration/Air con. technician or a vehicle A/C specialist.

Originally Posted by Ratel10mm

It could be a number of things: Short of refrigerant, excess refrigerant, control issue, clogged heat exchanger, incorrect refrigerant, moisture, air or non-condensibles to name a few.
Why did they change the valve? Was it the expansion valve? Has it got the original refrigerant & oil types in it? Other than this issue & the frozen coil, have you had any other problems?
Car A/C is not my speciality, but frankly I don't trust garages to even know the condenser from the evaporator. I'd take it to a refrigeration/Air con. technician or a vehicle A/C specialist.

thanks for the suggestions, i didnt realise so many thing could effect it. they changed the valves because they were allowing the system to freeze and that would in turn stop the cold air and it would blow ambient temp. i am hesitant to take it to anyone else. it is a warranty issue and i dont want them to look for excuses to claim someone has tampered with it, so for now it will go back to the dealer. unfortunately for me they may not know as much as a specialist so this is why i am needing the help.

regards, Michael

Mick,
I currently have the same issue. The dealer has a temp sensor on order from LR UK and is looking to fit it in the next couple of weeks. If your dealer is having issues tell them to speak to Hunter Land Rover they appear to know what the problem and solution is.

Regards
Sav

Originally Posted by sav07

Mick,
I currently have the same issue. The dealer has a temp sensor on order from LR UK and is looking to fit it in the next couple of weeks. If your dealer is having issues tell them to speak to Hunter Land Rover they appear to know what the problem and solution is.

Regards
Sav

thanks for the tip, it has also been suggested it could be the TX valve (involves removal of dash). would the temp sensor be the same thing? dealer wants to email Land Rover HQ for an answer but i'm sure there are enough cases of the same happening that it should be common knowledge for them by now

Yeah it could be, they also said they would need it for 2 days to remove the dash etc...

Originally Posted by mickygee

thanks for the tip, it has also been suggested it could be the TX valve (involves removal of dash). would the temp sensor be the same thing? dealer wants to email Land Rover HQ for an answer but i'm sure there are enough cases of the same happening that it should be common knowledge for them by now

Had this same problem with mine when new. The heat exchanger was icing up and blocking the airflow so it just stopped blowing cool air after ten minutes or so. TX valve replaced but it took the dealer two goes.

The TX valve & the sensor are not the same thing, although depending on the type of TX valve it may have a sensor fitted.
Good to hear there may be a solution around the corner.