Check your main power panel with a flashlight. If you tripped a breaker, one or more of the switches may have been disabled. Simply turning it back on should restore electricity. Whether it's not a fuse or breaker, determine if the power is off for your neighbors as well. Most homes have three different circuit breaksers that can be flipped up or down to change how much electricity flows through them. The master switch controls everything else inside the house - lights, heaters, air conditioners, and all other appliances. If this switch is working, try another circuit to make sure it isn't a faulty wire going to one of the other devices. A third possibility is a damaged appliance. Have a repairman check all the appliances in your home before you call an electric company.
These are just some of the many things you should do if electricity goes out. It's important to remain calm and know what your next step should be. Follow all safety instructions printed on consumer products. Have an emergency plan in place for yourself and your family. And don't forget about those who are less fortunate than you are. Some people will need help finding alternative energy sources to keep food from spoiling and water pumps running.
You've most certainly tripped a fuse. The simplest method to know is to locate your fuse box and check to see whether any of the electric breaker switches have switched downwards. If they have, you have either overloaded a circuit with too many electrical appliances, or one of those electrical items is defective. If this was done deliberately, your owner's manual will tell you how to bypass such protection.
The more advanced method uses computers instead of eyeballs to view your home's wiring diagram. With this information, an electrician can pinpoint which circuit is causing your problem and fix it without having to turn off all of your lights. This is called "wire tracing".
There are several different methods used by electricians to wire trace circuits. They range from simple to extremely complicated, depending on how large your house is and how old its wiring is. Simple wire traces use only two wires to identify each circuit: one for hot and the other for neutral. In more complex cases, three or four wires are needed to identify each circuit. If you have access to an electric panel map, it will help you determine which methods should be used in your specific case. Otherwise, call in an expert to do the job for you.
If your fuses are not responsible for your power outages, then there must be something else causing them. Fuses are usually the first thing to go when there's a problem on a circuit.
Examine your panel for a breaker that is currently in the "off" position or is between the "on" and "off" positions. Some breakers even feature a light that illuminates when a breaker is tripped. If it's in the middle, flip the breaker to the "off" position before flipping it back to the "on" position. This will ensure that no electricity reaches the circuit breaker itself and causes it to malfunction.
If your breaker is working but still not lighting, check the wiring diagram for your house and find the power source. Most circuits have both hot wires and neutral wires, and each circuit is fed by one side of the transformer. So if the black wire is not touching anything then the problem may be with this wire.
The third possibility is a dead battery. Your best bet here is to call someone to come and replace the battery for you. You can't just jump-start a car if it's been sitting for a while without electricity - the same thing applies to batteries in vehicles. They need to be replaced by a person who knows what they are doing so don't try this yourself.
Last but not least, verify that the circuit isn't overloaded. All household circuits include two wires: one black and one white. The black wire carries voltage from the transformer to all the rooms on the circuit, while the white wire keeps track of which rooms are being used. If someone starts using lots of appliances at once, it could cause other devices to trip the breaker.
Contact an electrician as soon as possible to get your electricity back on.