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Power inverter problems

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Harry Flashman, Jan 8, 2021.

  1. Jan 8, 2021 #1
    Harry Flashman

    Harry Flashman Medium Load Member

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    Yesterday my company-installed inverter started beeping while driving. Upon stopping and inspecting it, the overload warning light was on and the source of the beeping.

    I was only running one small device on it at the time (small AA battery charger) that I normally use.

    I disconnected everything from the inverter, turned it off and back on. The inverter powers up for about 2 seconds before throwing the overload warning and turning off again. How could it be overloaded when nothing is drawing power on it?

    Is it shot? Hoping I can fix it because I’d rather not have to go without power for 2 weeks before I can get back to the company shop.

    Thanks.
     
    Harry Flashman, Jan 8, 2021
    Harry Flashman, Jan 8, 2021
    #1
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  3. Jan 9, 2021 #2
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    the road less travelled
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    It's probably shorted out.
     
    25(2)+2, Jan 9, 2021
    25(2)+2, Jan 9, 2021
    #2
    Harry Flashman Thanks this.
  4. Jan 9, 2021 #3
    magoo68

    magoo68 Road Train Member

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    Does it show voltage ? I’ve had the same issue before and volts were low . I cleaned connection at battery problem was solved in my case.
     
    magoo68, Jan 9, 2021
    magoo68, Jan 9, 2021
    #3
    Doealex, Harry Flashman and uncleal13 Thank this.
  5. Jan 9, 2021 #4
    Harry Flashman

    Harry Flashman Medium Load Member

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    No voltage meter unfortunately.
     
    Harry Flashman, Jan 9, 2021
    Harry Flashman, Jan 9, 2021
    #4
    magoo68 and 25(2)+2 Thank this.
  7. Jan 10, 2021 #5
    CraigInReston

    CraigInReston Light Load Member

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    Apr 6, 2017
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    I just went through same situation driving a company truck. 2017 Freightliner Cascadia, about 300K miles on it. The manufacturer installed FreedomLine inverter crapped out with identical symptoms. Fault code indicated low voltage as problem, but after checking voltage (normal) and cleaning all connections, shop tested and said it was done. Installed a cheap box store inverter, and everything works perfect.
     
    CraigInReston, Jan 10, 2021
    CraigInReston, Jan 10, 2021
    #5
    Harry Flashman Thanks this.
  8. Jan 10, 2021 #6
    86scotty

    86scotty Road Train Member

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    You don't have access to a voltmeter? Test it at the output, AC and DC.
     
    86scotty, Jan 10, 2021
    86scotty, Jan 10, 2021
    #6
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