Dishwasher electrical hookup


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Old 06-28-15, 09:58 AM
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Dishwasher electrical hookup

Hi everyone i just got a new dishwasher and noticed that with the electrical connection on the new one i've got three wires green, white and black the issue i'm unsure of is with my old dishwasher there was a gray wire along with the white and green. I get the basic concept of the wiring i'm just trying to see if the direct wire coming from the wall is ok to use. It has the bare copper wire, white wire and a gray wire. That's where i've been thrown off as i'm not sure if they gray wire can be connected to the black on the new dishwasher. I'd rather be 100% certain before messing around with anything electrical. I do have pictures each group of wires i seem to be unable to upload them. Thanks for any guidance provided.
 
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Old 06-28-15, 10:01 AM
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View image: 20150628 123941 --- Image of the dishwasher connection

View image: 20150628 123952 ---- Image of the wall connection
 
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Old 06-28-15, 10:11 AM
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That gray wire is your hot wire. But you can test it with VOM meter. That particular brand of wire used gray instead of black.

May I suggest that you might want to install an outlet instead of hard wireing it.
 
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Old 06-28-15, 11:33 AM
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Norm, gray is reserved for neutral in the NEC. I'm not saying you are wrong but what kind of cable is that?
 
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Old 06-28-15, 11:44 AM
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The wire comes from the wall. There is an existing outlet there. I'm not sure if it is connected from the outlet or it's own wire but it does appear that it is connected to the outlet. The previous dishwasher was hooked up to it and did have a gray wire that was connected. I just didn't want to make an incorrect decision in assuming the gray wire should go to the black on the new dishwasher. I would actually consider hooking it up directly into the outlet. Are there specs i should be looking for in purchasing a three prong wire?
 
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Old 06-28-15, 11:50 AM
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Ray that is what i saw when looking up the gray wire which is what threw me off. I had also read that the white is neutral as well. In regards to the type of cable i'm not quite sure what you mean.
 
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Old 06-28-15, 11:59 AM
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The cord for the dishwasher should be a listed kit. The manufacturer should have a part number for it.
 
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Old 06-28-15, 12:52 PM
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In regards to the type of cable i'm not quite sure what you mean.
I'm not sure if it is a type of cable approved for running inside walls. I'd expect it to be NM (AKA Romex) cable. Is there any writing on it?
There is an existing outlet there. I'm not sure if it is connected from the outlet
Which could mean it is a left over cord from another dish washer and sure be removed.

My advice would be to buy a cord set so you can plug in your dishwasher and remove the unknown cord/cable completely.
 
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Old 06-28-15, 01:50 PM
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Yes the cord coming from the wall was used with the previous dishwasher. So i took apart the outlet and saw that the wire that was going to the previous dishwasher was run from the outlet. Would it be worthwhile to remove that wire and just utilize a three prong plug to the outlet?
 
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Old 06-28-15, 02:09 PM
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Would it be worthwhile to remove that wire and just utilize a three prong plug to the outlet?
That was probably what it was before someone mangled it instead of doing the job correctly. It would be better to use a new cord set.
 
 

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