How to replace faulty circuit breaker.

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a circuit breaker is a device that is used to protect our Installations from getting damaged when the excess current flow in the circuit. When a current of high amperage flow through a circuit that is rated below the amperage, the circuit breaker will be forced to trip OFF or break. And needs to be replaced before the circuit can work again.

When a circuit breaker trips off, due to high current or shunt circuit. The circuit needs to be replaced with another circuit breaker before the circuits start working again.

It is advisable you call a warrant electrician to replace the breaker but never the less. If you can study this blog very well, you will be able to carry out the tasks yourself.

Tracing a faulty circuit breaker in a circuit box.

Tracing a faulty circuit breaker is the first step to follow when replacing a faulty circuit. Go through the circuit breakers in the circuit board.

Open the board cover with an insulated screwdriver and investigate the circuit breakers inside the box. Trip ones are always halfway between the ON and OFF positions. Some circuits, break without tripping OFF or ON.

Tracing a faulty circuit using multimeter.

Set the multimeter to AC voltage mode and ON the multimeter.

Inserts the negative probe to the negative port on the board and use the positive probe to connect to the breaker side where the wire is held by a screw nut.

Make sure all the circuits are turn ONs and start to test one after the other the whole circuits.

The faulty ones will not read voltage meaning the circuit is open or break already and needs to be replaced with a new one.

How to measure the value of a resistor using a multimeter.

Removing a bad circuit breaker from the circuit board.

After you might have detected the break ones, the next step is to remove them and replace them with new ones.

In removing a circuit breaker from the circuit board, make sure you turn OFF the power before carrying out this operation for safety purposes.

The following are steps to follow when removing a circuit breaker from the circuit board.

  • Turn off the whole power supply to the building or flip the circuit boards switch to OFF.
  • Use a flashlight if the board is located in a dark area of the house.
How to replace a circuit breaker
  • carefully grasp the edge of the breaker and pivot it outward of the panel. It should be freely snapped and pull out from the panel. Be careful why removing it not to touch the necked side where the wire is tight.
  • Loose and remove the wire attached to the faulty circuit breaker.

Replacing the faulty circuit breaker with good one.

After removing the faulty circuit breaker, the next thing to replace them with new ones. While replacing them make sure to replace each one with the exact circuit breaker removed from the circuit board.

Steps to replace a new circuit breaker.

  • Get exactly the type of circuits breaker removed from the board.
  • Turn the breaker OFF and install it on the board.
  • Connect the wire removed from the older breaker to the new one. Adjust the screw nut on the breaker and insert the new pill side of the wire inside and tight.
  • Hook the end of the breaker to the clip on the board and push back inside the board. It needs a little force while pushing back to clip to the bus bar.
  • Turn ON the breaker you replace to ON.

Covering the circuit panels back.

After installing the circuit breaker the next thing is to cover back the loosed casing of the board. Cover and tight it to be firm and flip the circuit breaker switch to the ON side.

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2 thoughts on “How to replace faulty circuit breaker.”

  1. Pingback: How to calculate loads to assign to the circuit breaker. - Sparkrey

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