SETS model 110 tripping breaker

Discussion in 'Tankless Water Heater Forum' started by debbethune, May 11, 2011.

  1. debbethune

    debbethune New Member

    May 11, 2011
    Small 11kw heater was used for one spicket at the barn. It has its own 50amp breaker in a subpanel box and runs at 240 volt. Always kept the breaker off until wanted to have hot water. Used to work fine. Now, as soon as I try to turn on the breaker, it trips the main breaker for the subpanel. Any ideas?
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