Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

TriPac Apu not sensing low voltage

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Jul 12, 2021.

  1. Jul 12, 2021 #1
    mitmaks

    mitmaks Road Train Member

    2,550
    2,070
    May 16, 2014
    0
    My tri pac works fine except it stopped sensing low voltage ie it will drop below 12v and doesn't start to charge batteries. Only way to start it is to set it to a.c. and it will start and run fine.
    What could be the problem?
     
    mitmaks, Jul 12, 2021
    mitmaks, Jul 12, 2021
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Jul 13, 2021 #2
    jason6541

    jason6541 Road Train Member

    2,425
    5,365
    Mar 5, 2012
    Omaha, NE
    0
    Could be the sensing wire by alternator white wire it use to be.
    They are known to break. not sure if you have older non evolution or newer. But check the sensing wire. Been years since I worked on the tri pak
     
    jason6541, Jul 13, 2021
    jason6541, Jul 13, 2021
    #2
    mitmaks Thanks this.
  4. Jul 13, 2021 #3
    mitmaks

    mitmaks Road Train Member

    2,550
    2,070
    May 16, 2014
    0
    Its old tri pac
     
    mitmaks, Jul 13, 2021
    mitmaks, Jul 13, 2021
    #3
  5. Jul 13, 2021 #4
    jason6541

    jason6541 Road Train Member

    2,425
    5,365
    Mar 5, 2012
    Omaha, NE
    0
    Also check to be sure your battery terminals are clean and tight and no corrosion. Might load test batteries as well
    See if they are any good.
     
    jason6541, Jul 13, 2021
    jason6541, Jul 13, 2021
    #4
    mitmaks Thanks this.
  7. Jul 13, 2021 #5
    mitmaks

    mitmaks Road Train Member

    2,550
    2,070
    May 16, 2014
    0
    Last time batteries went bad it would start and attempt to charge them. One of batteries was swollen and apu ran non stop.
     
    mitmaks, Jul 13, 2021
    mitmaks, Jul 13, 2021
    #5
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.