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valleyboy
Disposal wiring too short

Hi all:

We recently completed some renovations on our kitchen due to a 3 floor flood back in June. The new sink and countertop were last to be finished, and when our garbage disposal was reinstalled, we found that the electric connection/cable to the disposal was an inch or two short for connection to the disposal (due to the slightly different layout of our new sink).

What would be the best way to reconnect this? Run all new cable to the breaker box, or is there a safe way to 'bridge the gap'? I often call on my FIL for electrical help (he's an electrician), but feel that this is something I can handle on my own.

Any advice would be most appreciated.

Thanks

A. Spruce
Re: Disposal wiring too short

Disposals are not - should not be - hard wired. There should be a switched outlet under the sink. The disposal itself will have a short power cord that is then plugged into the switched outlet. If this cord is too short, then replace the cord on the disposal with a longer one Any appliance shop or hardware store will have replacement disposal cords.

As for changing the cord, all it takes is a screw driver. Remove the cover plate on the disposal, note the locations of the existing cord wires. Remove old cord and install new. Reinstall cover plate.

Re: Disposal wiring too short

Most disposals I have ever seen have been hardwired, in fact of the few dozen I have layed my eyes on from 30 year old construction to 8 year old construction they were all hardwired (including the one installed in my house when it was built in '92).

As for your best option, if it is to keep the hardwired setup and maintain code, at least as far as wiring practices are concerned, you want to add a junction box. Basically install a junction box in the rear of the cabinet where the disposal is located and run the old wires in, and the new wires out to the disposal. The junction box must remain accessible (otherwise it violates code). As for if you can install the junction box in to the cabinet or it if must be installed in to the wall behind the cabinet (with the access plate in the cabinet) I honestly couldn't tell you what meets code or if both do. Never run in to such a situation in a cabinet.

Re: Disposal wiring too short

Older homes typically were hardwired. In our area many new homes are still hardwired. Generally, a disposal does not come with an appliance cord so you have to buy one. Then you have to do something with the wire hanging out of the wall. Typically, we use a remodel box with a GFI outlet. For this type of work, I recommend a good electrician.

A. Spruce
Re: Disposal wiring too short

Interesting, must be an east coastal thing. Here on the west coast I don't think I've ever seen a hardwired disposal. :cool:

Ernie_Fergler
Re: Disposal wiring too short
A. Spruce wrote:

Interesting, must be an east coastal thing. Here on the west coast I don't think I've ever seen a hardwired disposal. :cool:

Must be A. S.
The commonwealth I reside in, hard wiring G Ds is the only wiring practice I have ever seen. Basically Romex poking out of the sink base running up to the unit....:D

A. Spruce
Re: Disposal wiring too short
Ernie_Fergler wrote:

Must be A. S.

Now that's just mean! :D

Ernie_Fergler
Re: Disposal wiring too short
A. Spruce wrote:

Now that's just mean! :D

Does look bad. My apologies.
You see read some of my texting.:D

A. Spruce
Re: Disposal wiring too short
Ernie_Fergler wrote:

Does look bad. My apologies.
You see read some of my texting.:D

Don't worry, no offense taken. Takes more than a love bite from a sparky to ruffle my feathers. :p:D

A. Spruce
Re: Disposal wiring too short

I'm curious what the NEC has to say on the subject of hard wire vs appliance cord.

NEC
Re: Disposal wiring too short

Allows it but does not require it. The wall switch serves as a disconnect.

422.16 Flexible Cords.
(A) General. Flexible cord shall be permitted (1) for the
connection of appliances to facilitate their frequent interchange
or to prevent the transmission of noise or vibration or
(2) to facilitate the removal or disconnection of appliances that
are fastened in place, where the fastening means and mechanical
connections are specifically designed to permit ready removal
for maintenance or repair and the appliance is intended
or identified for flexible cord connection.
(B) Specific Appliances.
(1) Electrically Operated Kitchen Waste Disposers.
Electrically operated kitchen waste disposers shall be permitted
to be cord-and-plug-connected with a flexible cord
identified as suitable for the purpose in the installation instructions
of the appliance manufacturer, where all of the
following conditions are met:
(1) The flexible cord shall be terminated with a grounding type
attachment plug.
Exception: A listed kitchen waste disposer distinctly
marked to identify it as protected by a system of double
insulation, or its equivalent, shall not be required to be
terminated with a grounding-type attachment plug.
(2) The length of the cord shall not be less than 450 mm
(18 in.) and not over 900 mm (36 in.).
(3) Receptacles shall be located to avoid physical damage
to the flexible cord.
(4) The receptacle shall be accessible.

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