Question about 2005 Hyundai Santa Fe

4 Answers

The air conditioning compressor will not engage and the vent only blows out hot air, no cold air. the air conditioning was working when i parked the car and then when i came back and started the car and turned the air on. it only blew out hot air.

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  • wojomar Jul 19, 2009

    Mr BrokRench, i appreciate the info. you gave me the most info out of the returns i got. its my wifes car and i believe the refrigerant could be low due to her using her ac more than i do in my car. im not sure on how to put the new refrigerant in on this car. can you give me a quick tip on how? i am going to go out and get some refrigerant tomorrow to see if this is the problem. i hope thats all that it is. thanks again.
    wojomar

  • wojomar Jul 19, 2009

    Thanks again Mr BrokRench. I might just take it into the jiffy lube down the road where a friend of mine said they took care of his ac without ripping him off.

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  • Hyundai Master
  • 3,433 Answers

Did you reseet the vent positions?. It could happen but its a long shot the system has lost its charge and the safety switch is keeping the compressor from running, or the safety sw itself is bad.

Posted on Jul 19, 2009

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  • Master
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Hello wojomar...There are several things that can keep the A/C from working. A switch or a fuse might be the problem...Check this first...
There is a low pressure switch that senses the charge of the refrigerant pressure in the system. If the systems charge is low, the compressor will "short-cycle," that is, it will turn on and off rapidly, like every few seconds or so. This most likely happens as a car ages and begins to leak. If the refrigerant charge has leaked almost completely out, the switch will not close at all and the compressor clutch will not engage. Any technician with A/C knowledge should be able to check this and see if it's the problem.
Good luck...i hope this helps..please rate me a fixya.

Posted on Jul 19, 2009

  • Mr BrokRench
    Mr BrokRench Jul 19, 2009

    Ty wojomar...glad i was able to help. The A/C system is charged on the LOW side or SUCTION side as some call it.(bluecap)
    The LOW side fitting is usually located on the suction hose or line that goes from the accumulator to the compressor. The HIGH side fitting is located on the line that goes from the compressor to the condenser.(redcap) Freon is added on the LOW side!
    If you haven't the proper tools and equipment, IE: gauges, recovery system...etc. I suggest you let a certified technician service your system...If the refrigerant charge is low, there is a reason for this and needs to corrected before rechargeing. Other wise will have spent 30-40 dollars on wasted freon if it leaks out.
    Good luck wojomar...

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  • Master
  • 341 Answers

Check all the fuses and the a/c relays. Depending on how long the car has sat but it is possible that if you had a small leak in the system, that all the refrig has leaked out.2005 is possibly still under warranty. I would suggest contacting Hyundai first before you do anything to see, maybe you won't have to pay for it or possibly they have had a recall on some A/C part. What do you have to lose.

Posted on Jul 19, 2009

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  • Expert
  • 148 Answers

Have someone make sure the a/c has freon in it if it is low there is a leak have them look for oil or use a UV light to see if they can identify the leak

Posted on Jul 19, 2009

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