The answer to 'why is my recessed lighting not working' is that there are several common causes, including a tripped circuit breaker, a burned-out bulb, a loose connection, or a problem with the light fixture itself. Symptoms may include the lights not turning on at all, flickering, or dimming. To troubleshoot, start by checking the circuit breaker and replacing any burned-out bulbs. If that doesn't resolve the issue, you may need to inspect the wiring connections or replace the entire light fixture.
For simple problems like a tripped breaker or burned-out bulb, homeowners can often fix the issue themselves. However, if the problem is more complex, such as faulty wiring or a malfunctioning light fixture, it's best to call in a licensed electrician to diagnose and repair the issue safely.