A/C module box flashing red, won’t turn compressor on

Discussion in 'Volvo Forum' started by Bcrawford865, Jun 5, 2018.

  1. Jun 5, 2018 #1
    Bcrawford865

    Bcrawford865 Bobtail Member

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    Jun 5, 2018
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    I replaced my AC compressor and dryer tonight. But now the ac module box is flashing red 4 times saying it’s got a open pressure valve or circuit. This is keeping the A/C compressor from coming on. It working for a couple minutes then started flashing red and quit working. Has not come in since. Any suggestions for me? I’m on the road and got $800 tied up in this so far
     
    Bcrawford865, Jun 5, 2018
    Bcrawford865, Jun 5, 2018
    #1
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  3. Jun 5, 2018 #2
    boneebone

    boneebone Road Train Member

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    It's probably a bad A/C pressure switch.
     
    boneebone, Jun 5, 2018
    boneebone, Jun 5, 2018
    #2
    Oldironfan Thanks this.
  4. Jun 5, 2018 #3
    Oldironfan

    Oldironfan Road Train Member

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    Hope the system was not overfilled.
     
    Oldironfan, Jun 5, 2018
    Oldironfan, Jun 5, 2018
    #3
  5. Jun 5, 2018 #4
    nasriza

    nasriza Road Train Member

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    try to cycle ignition four times and you will reset the box if it still goes then one of the sensors is acting up.
     
    nasriza, Jun 5, 2018
    nasriza, Jun 5, 2018
    #4
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