Also, calling a professional for a minor project may save you from calling a professional for a costly major project. If a circuit breaker switches off or fuse blows usually means there is some type of problem with the system. Don t try to repair the breaker or fuse until the problem has been found and corrected. If there is any sparking, turn off the power and call an electrician. If smoke, fire, or sparking continues, leave the building and call the fire department.
Electricity is potentially dangerous.
The first rule is to attempt to make repairs at all unless you are 100 percent sure you know how to proceed safely. If you have any doubt in your ability to make even a minor repair, contact an electrical contractor. A circuit breaker flipping off or a fuse blowing is your first clue there is something wrong. Unplug appliances in the circuit and shut off wall switches also. Don t restore power to the circuit until the problem has been corrected.