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AC not cold

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by KARL QUIN, Jun 16, 2019.

  1. KARL QUIN

    KARL QUIN New Member

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    Hello all, my AC doesn't seem very cold.

    I have put the AC on and can see the gas flowing but warm air is coming out of the vent?

    Any advice would be most welcome .

    Regards Karl
     
    #1 KARL QUIN, Jun 16, 2019
  2. bisco

    bisco cookie crumbler

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    welcome!
    perhaps it needs recharging?
     
    #2 bisco, Jun 16, 2019
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    If you can see the refrigerant flowing in the sight glass, it is likely that the system needs a bit more R-134a to be added. There is very little difference in refrigerant level, between the system blowing ice cold and inadequate performance as you are currently experiencing.
     
    #3 Patrick Wong, Jun 16, 2019
  4. KARL QUIN

    KARL QUIN New Member

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    Thanks for your replies.

    Yes maybe its a little low.

    TMD want £89
     
    #4 KARL QUIN, Jun 17, 2019
  5. KARL QUIN

    KARL QUIN New Member

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    Can I buy a can of R-134a still?
     
    #5 KARL QUIN, Jun 17, 2019
  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    You can; make sure it doesn’t contain any oil or leak sealer. Get a hose with a pressure gauge and do not overfill. Depending upon ambient air temp, you may need the low side pressure to only be around 30 psi.
     
    #6 Patrick Wong, Jun 17, 2019
  7. Skibob

    Skibob Senior Member

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    You can in the U.S. Not sure how easy it is to buy in England though.
     
    #7 Skibob, Jun 18, 2019
  8. exstudent

    exstudent Senior Member

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    Rule out leaks first!
    Otherwise you will be in the same position again, and maybe soon, depending on the severity of the leak, if there is a leak.
     
    #8 exstudent, Jun 18, 2019
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