If a circuit in your home overloads or shorts, the breaker will trip and cut power. This helps prevent fire and possible electrocution. Resetting the breaker will restore power to the affected room(s) if there is an outage in your neighborhood.
How to Reset Breakers
Turn off light switches and unplug appliances in all rooms that have lost power.
Find your circuit breaker box and open the cover. Inside you’ll see the circuit breakers – small switches that may be labeled "kitchen," "bathroom" etc.
Find the tripped breaker – it’s the one that’s in the "off" position, or the middle position between "on" and "off."
If it isn’t already, move the switch to the full "off" position, then back to "on." This should clear any overload and return power to the room.
If the breaker trips again, it could be for a number of reasons: too many lamps and appliances plugged in; a damaged cord or plug; a short-circuit in a receptacle, switch, or fixture; or faulty wiring. Be sure to identify and fix problems.
Notes and Warnings
If a breaker trips repeatedly, reset it only when you've corrected the problem.
Most tripped breakers show an orange flag when a breaker is in the tripped position.
If your home has fuses instead of circuit breakers, follow the same steps for finding the blown fuse. Make sure to replace it with a new one of the same amperage.
When resetting a breaker, use only one hand. Stand to the side to avoid electrical arcing if the breaker should malfunction.
Working with electrical systems is potentially dangerous. If you're unsure of your abilities, or about any aspect of the job, call an electrician.