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Inverter problems

Discussion in 'Trucking Electronics, Gadgets and Software Forum' started by Evl1, Apr 16, 2014.

  1. Apr 16, 2014 #1
    Evl1

    Evl1 Light Load Member

    61
    31
    Nov 17, 2013
    Albany, NY
    0
    I have a 1500 watt Cobra inverter that works well as long as the engine and APU aren't running. If either one runs the inverter beeps then shows a code of OCP which I assume is over current protection and then shuts down. Anyone know what the problem with it is?
     
    Evl1, Apr 16, 2014
    Evl1, Apr 16, 2014
    #1
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  3. Apr 16, 2014 #2
    baha

    baha Road Train Member

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    Jul 25, 2013
    ga
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    If it does it on crank/up its normal, turn it off then crank eng. or apu. then restart conv.
     
    baha, Apr 16, 2014
    baha, Apr 16, 2014
    #2
  4. Apr 16, 2014 #3
    Evl1

    Evl1 Light Load Member

    61
    31
    Nov 17, 2013
    Albany, NY
    0
    Does it after crank up also. I think the inverter may be bad?
     
    Evl1, Apr 16, 2014
    Evl1, Apr 16, 2014
    #3
    baha Thanks this.
  5. Apr 16, 2014 #4
    Turn&Burn

    Turn&Burn Bobtail Member

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    Apr 16, 2014
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    Check the voltage while off and while on. Did this problem just start or has it been since the inverter was installed? Is anything plugged in when the error comes on? Does the fan get really loud? The inverter shouldn't use any current (less then an amp) unless something is plugged in. Its normal for it to fail while you crank, but not once the apu or motor is on.

    OCP is over temp. This means a bad temp sensor, or maybe the area is heating up some how when motors are running. Does it feel hot to the touch? When i got OCP the thing was burnign hot.

    https://www.cobra.com/sites/default/files/manuals/CPI1575.pdf

    Mine had a bad fan and kept getting that error.

    Is the inverter grounded?
     
    Turn&Burn, Apr 16, 2014
    Turn&Burn, Apr 16, 2014
    #4
  7. Apr 17, 2014 #5
    X-Country

    X-Country Medium Load Member

    645
    459
    Mar 27, 2014
    0
    its a Cobra. get a quality power inverter. Cobra stuff is not high on the list of quality products.
     
    X-Country, Apr 17, 2014
    X-Country, Apr 17, 2014
    #5
  8. Apr 17, 2014 #6
    Turn&Burn

    Turn&Burn Bobtail Member

    11
    2
    Apr 16, 2014
    0
    Not helpful to Op and not even true. After i got mine exchanged for warentee, ive ran mine for 2 years with no trouble
     
    Turn&Burn, Apr 17, 2014
    Turn&Burn, Apr 17, 2014
    #6
  9. Apr 17, 2014 #7
    Evl1

    Evl1 Light Load Member

    61
    31
    Nov 17, 2013
    Albany, NY
    0
    Must be a bad temp sensor then. It errors as soon as its turned on and is cool to the touch. I just got in the truck and it was already installed. I just cant figure out why it will run when the engine and apu are off.
     
    Evl1, Apr 17, 2014
    Evl1, Apr 17, 2014
    #7
  10. Apr 18, 2014 #8
    X-Country

    X-Country Medium Load Member

    645
    459
    Mar 27, 2014
    0
    X-Country, Apr 18, 2014
    X-Country, Apr 18, 2014
    #8
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