Home Automation - How do I hardwire the electrical on a new dishwasher?
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01-01-01, 10:27 AM
I purchased a new GE dishwaser and want to install it myself. I have a 1930's bungalow in which I remodeled the kitchen 4 years ago. I had water and hardwire plumbing left in a 'dishwasher' hole and I FINALLY bought the dishwasher. What do I do next?
Mike Swearingen
01-01-01, 06:49 PM
There are only four "connections" for an under-the-counter dishwasher.
A. A hot water (only) supply line. Use a brass compression fitting, if copper. I also would install a separate dw cut-off under the sink.
B. A drain hose (with hose clamp) looped over and angled down to a dw connection on a sink drain tailpiece (or to a disposal, if you have one. There is a knock-out plug on the disposal in the dw connection that has to be knocked out.)
C. A 110v electrical connection (plug-in or hardwire). I understand that the code calls for a dedicated dw circuit now (15 amp breaker and 14/2-with-ground wire or 20 amp breaker and 12/2-wg wire...the first is adequate for most dishwashers, but I recommend the latter). If hardwired, it must connect with wirenuts in a covered electrical box. The black (hot) to black, white (neutral) to white, and bare to bare or green ground, also pigtailed to the green screw on the box, if metal.
D. A plastic strip on the dw above the door that is screwed to the underside of the countertop to keep the dw from tipping out when opened.
You should have a set of installation directions with your dw. Just follow them.
One other concern might be the flooring in front of the dw. If it is built-up (such as ceramic tile or wood flooring), you may want to try to dry fit the dw first. Had someone in here this weekend that had to hacksaw off the "feet" of the dw to get it in.
In any case, Good Luck!
A. A hot water (only) supply line. Use a brass compression fitting, if copper. I also would install a separate dw cut-off under the sink.
B. A drain hose (with hose clamp) looped over and angled down to a dw connection on a sink drain tailpiece (or to a disposal, if you have one. There is a knock-out plug on the disposal in the dw connection that has to be knocked out.)
C. A 110v electrical connection (plug-in or hardwire). I understand that the code calls for a dedicated dw circuit now (15 amp breaker and 14/2-with-ground wire or 20 amp breaker and 12/2-wg wire...the first is adequate for most dishwashers, but I recommend the latter). If hardwired, it must connect with wirenuts in a covered electrical box. The black (hot) to black, white (neutral) to white, and bare to bare or green ground, also pigtailed to the green screw on the box, if metal.
D. A plastic strip on the dw above the door that is screwed to the underside of the countertop to keep the dw from tipping out when opened.
You should have a set of installation directions with your dw. Just follow them.
One other concern might be the flooring in front of the dw. If it is built-up (such as ceramic tile or wood flooring), you may want to try to dry fit the dw first. Had someone in here this weekend that had to hacksaw off the "feet" of the dw to get it in.
In any case, Good Luck!
some help
01-10-01, 12:40 AM
Hello
If the hard wire you have now will reach the dishwasher electical box just wire it in as The OldGuy said..If not you need to install a splice box now you can install a duplex plug and us a corded conection to dishwasher or add a peice of romex from the box to dishwasher...all splices need to be done in a box...If you do not have a switch for the exsisting wire you need to have one to hard wire or you can install the pluged cord and use it for the disconect.
If the hard wire you have now will reach the dishwasher electical box just wire it in as The OldGuy said..If not you need to install a splice box now you can install a duplex plug and us a corded conection to dishwasher or add a peice of romex from the box to dishwasher...all splices need to be done in a box...If you do not have a switch for the exsisting wire you need to have one to hard wire or you can install the pluged cord and use it for the disconect.