Carrier Comfort Pro Apu

Discussion in 'Ask An Owner Operator' started by BigRed40, Sep 24, 2024.

  1. ducnut

    ducnut Road Train Member

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    I wasn’t implying it was part of the lights; just when searching fuses, in general, you gotta look at all of them. I don’t know what all signals the APU needs to see before it’ll start, but, there’s a possibility some other random circuit could affect that. For instance, my APU wouldn’t automatically start for a low voltage condition. The tech found a loose connector on the wire going to the ignition switch, so the APU wasn’t being properly signaled.
     
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  3. BigRed40

    BigRed40 Bobtail Member

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    No my Apu starts with no problem. When the capacitor goes bad it keeps you from being able to turn on the AC/fan/heat on the display in the sleeper. Without the use of a good capacitor HVAC is not usable.
     
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