The power went out in only one room of my house. Everything else is working fine. The breaker is not tripped.
A single room losing power while the rest of the house works fine, with no tripped breaker, is usually caused by a tripped GFCI outlet, a loose wire connection, or a partially failed breaker. First, check all GFCI outlets in your house. GFCI outlets (the ones with Test and Reset buttons) protect circuits that may include outlets in other rooms. A tripped GFCI in the bathroom can cut power to outlets in a bedroom or hallway on the same circuit. Press the Reset button on every GFCI outlet you can find, especially in bathrooms, kitchen, garage, and basement. This is the cause about 40 percent of the time. Next, check the breaker panel more carefully. Sometimes a breaker trips to a middle position between On and Off that looks like it is still on. Flip the breaker for the affected room fully to Off, then back to On. If the breaker immediately trips again when turned on, there is a short circuit or overloaded circuit that needs an electrician. If neither GFCI reset nor breaker reset helps, a wire connection may have come loose at an outlet, switch, or junction box somewhere on the circuit. This requires an electrician to diagnose.
