MY AC SOMTIMES STOPSRKING

See this post on your exact problem http://ricksfreeautorepairadvice.com/car-ac-blows-cold-blows-warm/

close off the cab circulation to the outside air
make sure that the condenser fan is fully operational
fan in front of the radiator
have an accredited ac specialist check the gas pressures are correct --if there is excessive gas the high pressure switch will shut the ac compressor down
shut off the heater system as it it is a climate control system , there may be still hot air mixing with the ac air

A/C dead.
is the compressor turning?????
only a glance at it tells you that, that is GOAL 1.
it must turn or there will be no cold air.
it has a electromagnetic clutch. if the clutch is disabled, 0volts
the compressor will be shut down.
so... is it?
there is a brain, that controls the compressor called by SUZ the AMP.
the amp is just A/C protection logic.
it cuts AC for about 6 reason, ill skip those until you tell
the story of the compressor actions.
there are 2 sides, electrics and Freon side.
we start with electrics first (permissive logic)

my car is hyundai tucson 2011
there is some aircondiditioning problem condenssing fan is working but compressor is not working

What do you mean when you say it wont shut off? is it blowing hot air or do you just feel a lite flow of hot air even if you have the settings to cold?

If this is the problem that you always feel hot air at low flow and the ac goes to hot air then i would say one of two things, first if you have the selector to cold and you feel hot air then there may be a problem with the blend door, this door move to allow hot or cold air, the door may be broken or just a bad motor that controls it. keep in mind if the ac system shuts down for any reason the air then will be warm, it will be about the same temp as outside and maybe a little hotter.

this problem almost sounds like the ac compressor shuts off and then you are getting the outside air which is hot, there are many reasons for the compressor to shut off, it could be the compressor clutch heating up and disengaging , this would be due to a bad compressor clutch.

another reason is the fans are not working, the best thing to do is when the system starts to blow warm check and see if the compressor is running, start engine and look at the front of compressor, with ac off the front of it will not move, and then with ac on the front will spin, check it out and let me know, if it blows warm air and ac is not working then it may be compressor problem but if you are getting warm air and the compressor is spinning then it may be a door problem.

This is hard to check with out testing the system, so i listed a few things to check and let me know the out come. also the ac blows cold for how long before it gets hot air blowing out of the vents, good day.

Sounds as if the A/C Compressor has issues with the clutch/shaft locking up.... the blow off you heard was probably the pressure relief valve allowing an over charge of freon escape the system....however if the A/C system has a compressor problem or a clog that condition will also happen....can you have someone put a set of high/low gauges on it just for safety sake to be sure it is not developing too high of a head pressure...that would be my recoomendation....if the compressor locks up the belt can be thrown off causing your vehicle to require a tow/repair on the spot.

the blend motor on the vehicle is probably bad

the control module is bad it has an intermittant fault replace this and it will work fine

I would check the air gap on the drive to driven plate of the ac compressor clutch, it should be no more than 0.30 thousanths of an inch, if it is excessive you can have this problem, check it with a hot engine, if it is excessive you can adjust it with a special shim kit from the dealer.

I got a bigger coat to wear! while I find time to look into it further. I appreciate knowing there is more help available and will try the Primo Asist plan later. thank you louie