Compressors not turning on
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  1. #1
    Baller Poster
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    Jul 2005
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    illinois
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    Lagos finest
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    753

    Default Compressors not turning on

    I have an issue that my compressor were working, but I decided to turn off the truck so they wouldn’t be hot, so they can cool down since my tank was empty. Next day I go and they didn’t turn on, witch I have the compressors to turn on with the switch key of the truck. I thought it might be the relays so I ordered some and still nothing any ideas? Thanks

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  3. #2
    Aspiring Poster
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    Nov 2018
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    TURKEY
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    ISTANBUL
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    25

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    The only way to troubleshoot a capacitor is by replacing it and testing the unit, so this is commonly done when an AC compressor won't turn on. ... Valves – A broken valve can create major problems in a compressor. The most common issue is that the refrigerant is liquid instead of gas when it gets to the compressor inlet.
    Pickup Trucks for sale in UAE

  4. #3
    INFO STALKER
    Join Date
    Apr 2011
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    12

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    Bypass everything and put power directly to the compressor power wire. If they kick on, it’s either the relay or the pressure switch. Relays are easier the replace so I’d start there.

  5. #4
    Baller Poster
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    I replaced the pressure switch and relay, still nothing and also tap the compressor and it did kick on but when it’s with the truck nothing. Can it be the wires? They been there for years

  6. #5
    INFO STALKER
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    Apr 2011
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    Did you wire the comps directly a battery ?

  7. #6
    Baller Poster
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    Yes I did and both of them turn on

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