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  1. #1
    Bobtail Member
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    Jul 2010
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    12 Years
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    Engine Block Heater Problem .....

    I have a issue with my engine block heater, i have just replaced the wire harness for the engine block heater, ( this is a dual type wire, on cummins isx, 07 volvo 670) one of the connection goes to the engine block heater on the right side, and second connector goes to water seperater on left side. Now every time i plug in the electrical plug, it blows the GFI breaker. What should i look for next ?????? could it be the block heater itself that might be causing ?????????


  2. #2
    Banned or Retired
    Member Since
    Apr 2012
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    The Hot Rod Shop Oxford, AL
    Trucker?
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    Quote Originally Posted by Jeet View Post
    I have a issue with my engine block heater, i have just replaced the wire harness for the engine block heater, ( this is a dual type wire, on cummins isx, 07 volvo 670) one of the connection goes to the engine block heater on the right side, and second connector goes to water seperater on left side. Now every time i plug in the electrical plug, it blows the GFI breaker. What should i look for next ?????? could it be the block heater itself that might be causing ?????????
    Could be, but there is definately a short.

  3. #3
    Light Load Member
    Member Since
    Sep 2012
    Location
    New Bedford, Ma
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    Student
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    Check your cord you are using, does it only do it on the gfci or will it trips a normal breaker? gfci breakers can trip if there is any current coming back on ground....