A power outage in half your house is inconvenient and distressing. This information, combined with the different reasons for the outages, can help you to quickly restore power and make sure that your home is electrically safe. From simple problems such as blown circuit breakers to more complicated issues such as broken wiring or power failures from utilities, these are the 50 most common causes of partial power outages in this complete guide. Make sure you know how to diagnose and resolve these problems efficiently to avoid downtime and risks.