However, it’s not a suitable project for homeowners who are unfamiliar with electrical systems.
Each branch circuit breaker controls a household circuit.
The main breaker controls power to all of the branch breakers.
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Nevertouch these cables or connections, even when the main breaker is off.
These parts remain live at all times and carry deadly current.
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Use paper towels or rags on the area if necessary.
initiate the door to the panel.
Using one hand helps limit the potential injury an accidental shock can cause.
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Some service panels have a cover that includes the door.
Remove the Cover
Tilt the cover away from the panel using both hands and set it aside.
Be careful not to touch anything inside the panel.
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Test for Power
Use a non-contact voltage tester to confirm the power is off.
Identify the breaker you are removing, and touch the tester probe to the wire connected to the breaker.
It should not detect voltage.
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The panel has serious safety issues.
Turn Off the Branch Breaker
Switch the breaker you will remove to the OFF position.
This is a redundant step since the breaker is getting no power from the panel.
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It should come out easily by hand.
Do not use tools.
Pull the Breaker Out
Pull the breaker straight out to release it from the bus bar.
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The breaker body has a tab on its outside corner that fits into a slot on the bus bar.
You may have to wiggle the breaker a bit or give it a gentle tug to free the tab.
This is the hot wire from the circuit cable.
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You do not need to disconnect the other wires unless you are removing the cable from the box.
Do not leave the panel uncovered if you are not working on it.
Some signs that a breaker is bad include a burning smell, a hot surface, and frequent tripping.
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Healthy Housing Manual: Chapter 11 Electricity.Centers for Disease Control and Prevention.
Arc Flash: How to Protect Against Them.OSHA Outreach Courses.
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