A/C blows hot... help!

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by WayneG, Aug 28, 2018.

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  1. WayneG

    WayneG Junior Member

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    My AC just started blowing hot air all of a sudden. I checked the pressure and the low side pressure is pegged while the high side pressure is about 120. It's about 93 degrees outside. I don't want to add any Freon until I know what the problem is. Does anyone have any suggestions? Please help!
     
    #1 WayneG, Aug 28, 2018
  2. WayneG

    WayneG Junior Member

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    Also, I don't know if the compressor is on or not. The pressure is the same whether the car is on or off.
     
    #2 WayneG, Aug 28, 2018
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    I think you have excessive R-134a in the system.
     
    #3 Patrick Wong, Aug 28, 2018
  4. GeNeTiC_FREAK

    GeNeTiC_FREAK New Member

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    is the ac blowing hot constantly or just after driving the car?
     
    #4 GeNeTiC_FREAK, Aug 29, 2018
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