A circuit breaker is a safety switch that automatically "opens" (breaks ... Short circuits happen when electrical current bypasses the regular load and takes a shortcut back to the source.

Testing your 240V circuit breaker panels is also important ... tripping without a load, being difficult to switch on and off, feeling spongy, flickering or surging appliances and lighting and ...

Even if you aren’t an electronics person, you probably have a working knowledge of circuit breakers. When the lights go out, you find the circuit breaker and flip it back to the on position.