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Thread: Electrical - Dishwasher hookup.

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    DoD Army bjferri's Avatar
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    Question Electrical - Dishwasher hookup.

    What is the proper/standard (code) way to run the electric to the dishwasher? So far I have the wire coming out of the wall behind the sink cabinet. I kow the connection is made from within that cabinet but here are my questions:
    • Where do I set the junction box.
      • Do I make it hardwired.
        • Do I make an outlet and attach a plug to the dishwasher wire so I can plug it into the outlet.


    Thank you.
    Brian

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    Electrical Contractor/Instructor jwelectric's Avatar
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    Part III of 422 requires a disconnect for all appliances rated at one eighth horse power and larger.
    422.16(B)(2) allows a cord as long as the cord is three to four feet long and it is terminated in a receptacle that has a grounding terminal. This receptacle can be in the same space as the dishwasher or in the space adjacent thereto.

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    DoD Army bjferri's Avatar
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    You obviously didn't understand my plain jargin...lol. That being said...WHAT? Talk to me like I'm a customer and not an electrician... I appreciate your feedback but it was a little ambiguous for me not having an electical background. I just need simple terms..thank you again.
    Brian

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    Retired Defense Industry Engineer jadnashua's Avatar
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    If you hardwire it, you need a switch (disconnect). If you don't, they allow you to attach a power cord (no longer than the code allows), and plug it in. If the description above doesn't make sense, maybe it's time for an electrician.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    DoD Army bjferri's Avatar
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    Thanks - I understand.
    Brian

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    Plumber jimbo's Avatar
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    "back in the day" dishwashers were always hardwired....a plain romex just stuck out through the drywall and was connected to the jbox on the machne. Two things have changed:
    ►you are now required to have a disconnect means, which can be just plug, or a switch.
    ►many DW are now 'tall tub', and any work after you slide the machine into the spot is very difficult. I like to make all the electrical and plumbing connections outside, then feed the wire/tube thru as you slide the machine in.

    For the above reasons, I suggest putting a receptacl in a box, surface mount or conventional, and put it NOT behind the DW but in the adjacent sink cabinet.

  7. #7
    Electrical Contractor/Instructor jwelectric's Avatar
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    Quote Originally Posted by bjferri View Post
    Talk to me like I'm a customer and not an electrician... .
    Well okay then here i go. hire an electrician for this installation to ensure your safety.
    Last edited by jwelectric; 07-14-2010 at 09:09 AM.

  8. #8
    DoD Army bjferri's Avatar
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    My sarcastic humor sometimes gets the best of me. Please excuse that. I get a wealth of valuable information from this forum and all the professionals, including you, have helped a great deal.
    Brian

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    Electrical Contractor/Instructor jwelectric's Avatar
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    Quote Originally Posted by bjferri View Post
    My sarcastic humor sometimes gets the best of me. Please excuse that. I get a wealth of valuable information from this forum and all the professionals, including you, have helped a great deal.

    Then you must have wanted me to answer you with advice instead of answering you as my customer. As a customer of mine I will always be thinking of your safety and would never advise you with how to information.

    A means to disconnect must be installed. This disconnect can be a switch or a receptacle. If it is a receptacle then the cord supplying the dishwasher cannot be longer than four feet. If you chose to use a switch then the switch must be insight of the dishwasher when the unit is being serviced or taken out.

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