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Does a Garbage Disposal Need a GFCI [Effects and Guidelines]

When your hands are dripping wet after doing the dishes and you go for the garbage disposal. Then you can find yourself second-guessing yourself.

Does a garbage disposal need a GFCI?

Garbage disposal does not necessitate the use of a GFCI. The National Electrical Code considers this to be optional protection. Although it is not required by law, several manufacturers recommend different things. It is that GFCI protection should be included in the installation instructions. 

These impacts, however, have more specifics and guidelines. Just stay with me to get the best guideline.

Here we go!

What is GFCI? 

GFCI is a gadget that keeps you from getting an electric shock. When an electrical gadget in your home malfunctions, the gadget shuts the power supply. It is done in less than 30 milliseconds to safeguard the person. People have a far lower likelihood of being electrocuted as a result of this. 

GFCI is often used everywhere. When there is a potential that a container may be exposed to moisture. Moisture, as you are well aware, greatly enhances the possibility of electrocution by accident.

Does a Garbage Disposal Need a GFCI? 

The presence of a gfci in a garbage disposal is not required. It’s totally the user’s decision. Because it adds an extra feature to the garbage disposal. So, the user will decide if they want this feature or not.

Ground faults are detected using a ground fault circuit interrupter (GFCI) output. When the current sags, the electricity in the outlet is turned off. It was designed to run via a different conductor, like the human body. If you expect the outlet to serve the garbage disposal, GFCI outlets are a smart option.

You may overlook GFCIs if this isn’t a worry for you. GFCIs are not only used in the kitchen but also bathrooms. You need to follow a specific GFCI code for bathrooms. Because they safeguard those who are nearby from injury. 

Advantages of GFCI Protection

There are several benefits to using a GFCI outlet. The most obvious benefit is, it lowers the chance of electrocution caused by wiring issues. A GFCI can also help to avoid electrical fires caused by shorts or other problems.

Again, a GFCI outlet may safeguard your trash disposal. When there is a power outage. GFCI protection will also put your mind at ease if water continues hitting your outlets. You won’t have to worry about a ground fault emerging in the future.

Disadvantages of GFCI Protection

When it comes to adding GFCI protection for your trash disposal, there aren’t many drawbacks. After all, I’m talking about your safety here!

Nothing will happen if the outlet was correctly fitted. And if it is not in danger of coming into touch with water. But keep in mind that changing an existing outlet isn’t always simple. Especially if you’ve never worked with electrical wiring before. Because the wiring problem with GFCI is a very common issue. This is particularly true if your wiring is crude.

How to Attach a GFCI to a Garbage Disposal

There are a few steps you need to go through while attaching gfci to a garbage disposal. Without any further due let’s go through it.

Step 1: Electrical box

First, you need to get an electrical box. The box must be maintained in a secure area. It should also be close enough so that it can reach the garbage disposal’s power cord.

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Step 2: Check the Cable

Then you’ve to get an appropriate cable to get the job done. A metal channel must be used to inspect it. Before we attach it to the box.

Step 3: Check the Power

In order to check the power, use a voltage tester. If the power isn’t off then we need to turn it off.

Step 4: Separate the wires

In this step, first, pull out the wire from the box. After that, strip off the cover at the end of the wire. We need to separate the wires before removing the plastic part from the wires. 

Step 5: Connect GFCI

The brass line connector receives the black wire. The silver line connector receives the white wire. You’re not done until the bare wire is wrapped around the green grounded screw. Now it is very simple to attach the gfci and cover its plate back into place.

So, these are steps which we should follow to attach a gfci in a garbage disposal. 

Things to Remember While Attaching GFCI in a Garbage Disposal

There are a few things you should look at before connecting gfci to your garbage disposal. Let’s go through them: 

  • Ensure that the wire is not worn out. It is possible if you use it for a lengthy period of time. If gfci wire is worn out we need to replace the wire. 
  • Proper check needs to be done, if the wire is touching the ground. Otherwise, there is a leak in the circuit. It will cause it to trip. You need to rewire the old-house circuit in this situation.
  • Check if all the circuits are working. If not that means there is a defective circuit. Attaching a system where we can understand these problems. 
  • Check the area surrounding it is dry. If the area is wet then it will be dangerous. In this case, we can also cover it with waterproof material.
  • GFCI is an electrical device and there is no guarantee to it. You have to keep checking on it as it can be faulty. 

You should keep these things in mind. At the time of attaching GFCI in a garbage disposal. 


Question: Does a refrigerator need GFCI protection?

Answer: No refrigerator does not need GFCI protection. Only kitchen receptacles that supply the countertop surfaces must be GFCI protected. Unless the refrigerator is connected to a countertop outlet.

Question: Why is garbage disposal tripping GFCI?

Answer: The receptacle into which the disposal is plugged is powered by the GFCI receptacle’s Load side. As a result, the receptacle will have ground fault protection. Due to having a ground fault between the GFCI and the disposal, it trips.

Question: What kind of outlet do I need for a garbage disposal?

Answer: 120V-GFCI. A trash disposal is normally hooked into a 120-volt GFCI outlet under the sink. You can call an electrician if you don’t have an outlet like this.


We have tried our best to answer your query: does a garbage disposal need a GFCI. 

When working with electricity, please be careful. If you’re worried, you should seek expert assistance.

Thank you! Stay safe!