2014 Freightliner Cascadia

Topic 17995 | Page 2

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Van T.'s Comment
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Hello, all my lighters 4 of them in sleeper cascadia 2010 with apu (it happens even when my apu is on- so its charging batteries) , are going down when my engine is not running after few minutes, before that I can here beeeep sound, this thing didn't happened before I m using one coleman cooler and charger for phone. Any ideas? Than you

APU:

Auxiliary Power Unit

On tractor trailers, and APU is a small diesel engine that powers a heat and air conditioning unit while charging the truck's main batteries at the same time. This allows the driver to remain comfortable in the cab and have access to electric power without running the main truck engine.

Having an APU helps save money in fuel costs and saves wear and tear on the main engine, though they tend to be expensive to install and maintain. Therefore only a very small percentage of the trucks on the road today come equipped with an APU.

Truckin Along With Kearse's Comment
member avatar

Hello, all my lighters 4 of them in sleeper cascadia 2010 with apu (it happens even when my apu is on- so its charging batteries) , are going down when my engine is not running after few minutes, before that I can here beeeep sound, this thing didn't happened before I m using one coleman cooler and charger for phone. Any ideas? Than you

That sounds like low voltage issues. When my International dtains too much power it stops the accesories like 12v to save the batteries. Check the batteries

APU:

Auxiliary Power Unit

On tractor trailers, and APU is a small diesel engine that powers a heat and air conditioning unit while charging the truck's main batteries at the same time. This allows the driver to remain comfortable in the cab and have access to electric power without running the main truck engine.

Having an APU helps save money in fuel costs and saves wear and tear on the main engine, though they tend to be expensive to install and maintain. Therefore only a very small percentage of the trucks on the road today come equipped with an APU.

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