Opt-idle low air alarm

Discussion in 'Freightliner Forum' started by Disinherited, Jan 18, 2018.

  1. Disinherited

    Disinherited Bobtail Member

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    Nov 25, 2017
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    i set the opt idle without using the temperature gauge in the sleeper. This makes the truck turn itself on once in a while to keep the batteries charged. But it wakes me up (infuriatingly) when the air bleeds out of the tanks. The constant screaming low air warning that forces you to get out of bed and turn the engine on manually.... and consider attacking the entire console with a blunt object. The key has to be in the on position or opt idle won’t work. Batteries will drain. Bunk heater will stop and I will freeze to death.

    What should I do? Destroying the console with a hammer is my first choice. Consequences be ######. Lol
     
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  3. Regen Again?

    Regen Again? Bobtail Member

    17
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    Oct 1, 2011
    Brooklyn, NY
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  4. Brandt

    Brandt Road Train Member

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    Sep 17, 2012
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    Fix the air leak. I have the opt-idle system. I will get the low voltage cut off warning for the sleeper sometimes before the opt-idle will start truck to charge batteries.

    The low voltage warning come on at 12.3v and the opti-idle won't start engine till 12.2v. so it will beep beep beep for 6 seconds then cut the power to the sleeper.
     
  5. mpd240

    mpd240 Road Train Member

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    Sep 17, 2011
    Minnesota
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  6. WillFreshour1978

    WillFreshour1978 Bobtail Member

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    Feb 28, 2020
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  7. WillFreshour1978

    WillFreshour1978 Bobtail Member

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    Feb 28, 2020
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    After finding I can turn off the alarm by unscrewing my dash console 2015 cascadia found the buzzer wire harness thought to look up low air buzzer on off switch no switch found however if I can find the pin that has buzzer wire I can splice utilize a switch and put in…ought work.?
     
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