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No idle AC prostar problems

Discussion in 'International Forum' started by Twista89, Jun 27, 2022.

  1. Jun 27, 2022 #1
    Twista89

    Twista89 Light Load Member

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    Oct 2, 2017
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    So recently I had my ac serviced and had all batteries, some jumper wires, and fuses replaced and for a month everything was fine. Now I seem to have a problem with the no idle system on my prostar not cooling. Everything turns on, evaporator motor, condenser fan, no idle ac light, all works but when I go to touch the ac lines going into the bunk they are not cold at all. Also noticed my voltage is barely dropping now. Is the compressor in the bunk done?
     
    Last edited: Jun 27, 2022
    Twista89, Jun 27, 2022
    Twista89, Jun 27, 2022
    #1
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  3. Jun 30, 2022 #2
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    If you have the type with the bigger 150 amp relay, there should be big 4 wire connector that powers your compressor controller. There should be power at the two red wires, and ground at the white ones. This is fused from the cube type fuses at the extra set of batteries usually behind the bunk in between the frame rails or side saddle battery box. To check for power to the compressor, you need to access the compressor and you will see three wires going to it, blue orange and yellow. Each of these should have about 6 volts being cycled to them each.
     
    Heavyd, Jun 30, 2022
    Heavyd, Jun 30, 2022
    #2
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