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power inverter keeps shutting off

Discussion in 'Trucking Electronics, Gadgets and Software Forum' started by freddyb, May 13, 2014.

Page 1 of 5
  1. May 13, 2014 #1
    freddyb

    freddyb Light Load Member

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    Aug 22, 2013
    dumas ar
    0
    I have a 1500 watt road pro inverter I bought off ebay. I hook only a 700 watt microwave to it. it will run for about 2 sec and inverter shuts off. it says LV or something like that on the display. I have an 07 freightliner with extended frame. battery box is close to front tandems. I got power cables from parts store. think they may be aluminum meant for car amps. how do I fix this problem. cold sandwiches are getting old quick. thanks
     
    freddyb, May 13, 2014
    freddyb, May 13, 2014
    #1
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  3. May 13, 2014 #2
    Cranky Yankee

    Cranky Yankee Cranky old ######

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    the cables probably cant carry the current
    ts sells wiring kit for inverter
    get the heavier duty setup
     
    Cranky Yankee, May 13, 2014
    Cranky Yankee, May 13, 2014
    #2
    EZX1100 and freddyb Thank this.
  4. May 13, 2014 #3
    Knucklehead619

    Knucklehead619 Medium Load Member

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    The LV most likely means low voltage. I'd have to see your setup to be sure but my best guess is you likely have a bad connection at the battery. Also, as you mentioned the cables do you know what gauge they are? The wrong cables will not supply the juice necessary to run a larger inverter. Lastly, if you have an inline fuse set up (and I hope you do for your sake) check it out... Sometimes the fuse won't completely blow and will still allow a small amount of current to get through i.e. enough to get the inverter to power up but fail immediately under load like you described.
     
    Knucklehead619, May 13, 2014
    Knucklehead619, May 13, 2014
    #3
    free spirited1 and freddyb Thank this.
  5. May 13, 2014 #4
    freddyb

    freddyb Light Load Member

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    Aug 22, 2013
    dumas ar
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    thanks. is the distance between the battery box and inverter a prob? its right behind my seat. 63" sleeper
     
    freddyb, May 13, 2014
    freddyb, May 13, 2014
    #4
  7. May 13, 2014 #5
    MsJamie

    MsJamie Road Train Member

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    What gauge is the wire, and how long is the run?
     
    MsJamie, May 13, 2014
    MsJamie, May 13, 2014
    #5
  8. May 13, 2014 #6
    freddyb

    freddyb Light Load Member

    81
    44
    Aug 22, 2013
    dumas ar
    0
    I do have a fuse but I haven't put it inline yet. I just tried the install today and was checking to make sure it all worked properly and this is the outcome
     
    freddyb, May 13, 2014
    freddyb, May 13, 2014
    #6
  9. May 13, 2014 #7
    freddyb

    freddyb Light Load Member

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    Aug 22, 2013
    dumas ar
    0
    4ga wire and I wld say pos cable is 9-10 ft and neg is maybe 5
     
    freddyb, May 13, 2014
    freddyb, May 13, 2014
    #7
  10. May 13, 2014 #8
    passingthru69

    passingthru69 Road Train Member

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    Some invertors need two sets of cables going too them.
    I bought some good #4 jumper cables and cut off the clamps and installed battery lug ends on the ends of the cables.
    Or if you got big bucks, #4 welders cable will work also.
     
    passingthru69, May 13, 2014
    passingthru69, May 13, 2014
    #8
    freddyb Thanks this.
  11. May 13, 2014 #9
    freddyb

    freddyb Light Load Member

    81
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    Aug 22, 2013
    dumas ar
    0
    again, have extended frame trk with batt box close to front tandem
     
    freddyb, May 13, 2014
    freddyb, May 13, 2014
    #9
  12. May 13, 2014 #10
    Cranky Yankee

    Cranky Yankee Cranky old ######

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    longer the distance bigger guage wire you need
     
    Cranky Yankee, May 13, 2014
    Cranky Yankee, May 13, 2014
    #10
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