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Installing 18" Dishwasher and wiring it to garbage disposal

Installing 18" Dishwasher and wiring it to garbage disposal

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  #1  
Old 09-03-08, 03:00 AM
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Installing 18" Dishwasher and wiring it to garbage disposal

Hello,

I am installing an 18" GE dishwasher in my apartment, I have carpentry experience, but have never installed a dishwasher before. My main issue is i don't have any real access to a circuit or outlet to wire the dishwasher to. My apartment has never had a dishwasher in it and I have to cut out cabinetry space to fit it, but I was wondering if I could connect it to the same circuit that my garbage disposal is on. If I connect it to the same circuit at the garbage disposal will the dishwasher only work while the switch for the garbage disposal is switched to on? Will I have to get a specific part? If anyone could help it would be greatly appreciated, also in referring to items that I should need will you be as layman as possible I have carpentry experience, but only a little in wiring things. Thank you.
 
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Old 09-03-08, 08:32 AM
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"If" your outlet box for the disposar has two cables entering it ?, one has to be power (measures 120v between the black and white wire) the other has to be the cable that goes to the switch to interrupt the power going to the receptacle that the the disposar is plugged into. Is this what you see??? If so then all you have to do is 1) break the little brass tab on the receptacle 2) picktail a 6 inch piece of wire from the black hot 120v wire and attach it to the unused brass screw on your receptacle . and "wallah" you have it. Perhaps someone else with more house wiring experience will chime in and confirm...
 
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Old 09-03-08, 08:40 AM
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Keep in mind that what you are doing is probably not legal. Non licensed people doing electrical work in a rented apartment is generally not legal and not a good idea. If what you do causes a fire or other problem that affects others you could be liable.

That being said you will probably go ahead and do it anyway so just be sure of what you are doing or get someone that does!
 
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Old 09-03-08, 10:27 PM
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Originally Posted by smorden View Post
Hello,

I am installing an 18" GE dishwasher in my apartment, I have carpentry experience, but have never installed a dishwasher before. My main issue is i don't have any real access to a circuit or outlet to wire the dishwasher to. My apartment has never had a dishwasher in it and I have to cut out cabinetry space to fit it, but I was wondering if I could connect it to the same circuit that my garbage disposal is on. If I connect it to the same circuit at the garbage disposal will the dishwasher only work while the switch for the garbage disposal is switched to on? Will I have to get a specific part? If anyone could help it would be greatly appreciated, also in referring to items that I should need will you be as layman as possible I have carpentry experience, but only a little in wiring things. Thank you.
I opened up the plate on the underside of the garbage disposal and there are two white wires connected together and a black and a blue wire connected together, I didn't see any ground wire under the disposal. So can I just run a wire from the dishwasher, and wire the all three white together under the disposal, and the two black and blue together. Also what do I then do with the ground wire? Thank you for your help I hope this post isn't too vague.
 
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Old 09-03-08, 10:54 PM
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If your disposal is controlled by a switch on the wall then I'm sure you'll see a problem with that setup...

If it's one of the disposals that has a stopper that you put in and twist to turn on (I doubt it in an apartment) then one could do that I suppose.

You do need a working ground for your dishwasher tho. You'd also want any exposed wiring to be protected (like using AC/MC).

Any other way than tapping off an outlet or running a new dedicated circuit is hackish... Add dangerous if your dishwasher isn't grounded.
 
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