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Low Voltage On One Leg: Here’s What To Do To

You must be quite annoyed when you’ve got an electrical problem. Electricity issues due to low voltage can be quite problematic in the night time. Low voltage on one leg can actually spoil your day! 

Don’t fret, it can be fixed. 

What to do if there’s a low voltage on one leg?

If you have a low voltage on one leg, you’ll need to troubleshoot your meter. First, check the meter and look for problems. Then move on to checking the thermal of the main breaker. If it’s problematic, you may need to replace it. Once you troubleshoot it, you can move along to solving the issue.

This was just the summary of the solution. We have curated a detailed discussion regarding this issue.

Sounds like what you’re looking for? Let’s just get started!

What Happens When There Is A Low Voltage On One Leg

You may not realize how serious the ramifications of one leg having low voltage are. This can have an impact on the entire electrical system, just as one faulty receptacle can have an impact on others

The two power-carrying poles are responsible for dividing a house’s electric connections. As a result, only 120V is available when one of the two legs is low voltage. Almost half of your home is cut off from the internet due to this issue.

When one leg experiences this issue, there is a risk of the voltage crossing over to 240V. As a result, light blinking, flickering, or circuit tripping may occur. As a result, 240V appliances should never be used. 

Because this can cause appliances to catch fire or cause the other outlets’ power to drop. At worst, there can be an explosion which can lead to a definite fire. Using appliances at this time can ignite a fire similar to a gas fireplace that turns on itself.

Low Voltage on One Leg-Here’s What To Do!

You’ve already got a brief about the solutions. But we also need to troubleshoot before getting into the solutions. Once you figure out the problem, you can move on to the solution. 

The troubleshooters and solutions are provided below-

Troubleshooter 1 of 2: Check The Meter

First you need to check your meter for problems. Low voltage on one leg is caused by corroded or melted wires. Examine the meter panel and make sure the cables are in functional order. 

For a device to work properly, not all types of wiring are acceptable. For instance, 12 2 wirings are one of them. 

If your wires become corroded, the entire circuit may be harmed. Don’t forget to see if your meter panel is losing electricity. Low voltage can occur as a result of power loss.


You should repair the cables if they are broken. For safety concerns, you should contact an electrician. It can be life threatening to do it on your own. 

Contact the electricity company if the power goes out. Are you curious as to whether or not there is a power outage?

To check the power, you can grab a digital ammeter or an Ohmmeter. If you’re not sure which ohmmeter to use, see a professional. You may choose from the list provided below-

Product 1
Product 2

These products are quite precise in reading the power of your appliances. You may consider these products without any hesitation!

Troubleshooter 2: Check The Thermal of The Main Breaker

If the meter wasn’t the problem for you, check your thermal. You need to check if the automatic switch is fine. Otherwise, it may be necessary to change the thermal. 

Thermal is the main part that works from a circuit breaker. When the heat is too high, the circuit switch mechanism shoots power.

Stop the excessive current flows through the cables. As a result, this would finally dissolve the coil or thermal. Therefore, the voltage might get low on one leg in this case. 


If you think the switch is problematic, replace the thermal. As a thermal, it has more possibilities to be influenced by excessive heat. 

If none of these solutions work for you, don’t be afraid to seek professional help. Problems related to voltage fluctuation should receive priority. So you can keep yourself safe from other dangers. 

These are troubleshooters and solutions to follow for a low voltage on one leg. Make sure you don’t procrastinate to take action regarding this issue. Because this is quite crucial!


Question: How can an electric fire start?

Answer: The removal of grounding wires may result in an electric fire. Because grounding protects the equipment and dissipates the power. Electrical equipment and receptacles that are old and obsolete can also cause fires. Faulty wiring and switches can sometimes have devastating repercussions. As a result, don’t neglect even the tiniest electrical issues.

Question: Why is there a voltage outage in only one room? 

Answer: The circuit breaker is the source of the problem if only one room has lost electricity. A tripping breaker may be to blame. It could be caused by a circuit overload. Faulty appliances might cause the breaker to trip on occasion.

Question: What is the purpose of an electrical ground?

Answer: The safety of gadgets is ensured by electrical grounding.It is regarded to be the most efficient way of sending electricity to the earth. An electric circuit contains both positive and negative electricity. Both positive and negative electricity is present in an electric circuit. At the same time, it features a safety grounding line that connects to the ground.

The Final Words

Now you know what to do if there’s a low voltage on one leg! We’d like to wrap up now.

Wish you a very happy home improvement period! Kudos!