240 -4 prong plug to 3 prong?

i am sure it is the ground n neural wires tied  the same place with the 2 hots on the others.........?

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  • ?
    Lv 7
    2 months ago
    Favorite Answer

    Correct. Tie the neutral and ground together. But the best thing is to change the plug to a 4 prong. 

  • 2 months ago

    FOUR wires with FOUR prongs is better.   You have a dedicated ground wire.    It would be better to change the three hole outlet to a four hole one and add a ground. 

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