I’m getting a new dishwasher with the intention of directly replacing my existing one from 15+ years ago. However I’m seeing conflicting descriptions of what is up to code, so I’m hoping someone can help.
My current dishwasher is hardwired and has no power shutoff anywhere near. I’m not home so can not check whether it is a dedicated line or 15A or 20A, or whether it has GFCI. The drain line has a high loop, not air gap, before draining to a disposal. However the Home Center I bought the appliance from says it must be a plug connection, must be GFCI, must be air gapped, and of course wants to sell me more in installation than the dishwasher costs. Looking around here and other sites I see the opposite, as well as plenty saying it is my choice.
So, in Massachusetts, is it up to code:
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if it’s not a dedicated circuit, am I required to upgrade?
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if it’s not 20A circuit, am I required to upgrade?
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to direct wire, or does it need to be plugged in?
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if direct wired, does it need a visible shut off?
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to GFCI or not?
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use the existing high loop, or does it need an air gap?
I’ll do whatever I need to but obviously am hoping to just install the same way the current one is. Can you help clarify the requirements?
Best Answer
In general you do not have to upgrade when replacing an installed appliance, but I cannot speak for your state or municipality. In my state there is no need for even a permit as long as it is a replacement or repair. Unless there is a code violation or you simply want to upgrade for a more safe installation.
When I say code violation that would be the effective code that was in place during its installation. The famous "Grandfather clause".
Good luck