The answer to 'dimmer switch keeps tripping' is that a dimmer switch tripping is usually caused by a problem with the electrical load it is controlling, such as faulty or incompatible light bulbs, a short circuit, or an overloaded circuit. Symptoms may include the dimmer switch cutting power to the lights, flickering or buzzing lights, or the circuit breaker tripping repeatedly.
To troubleshoot, first check that the light bulbs are compatible with the dimmer switch. Incompatible bulbs can cause the dimmer to overload and trip. Replace the bulbs with dimmable LED or incandescent bulbs. Next, inspect the wiring for any signs of damage or short circuits. If the problem persists, the issue may be an overloaded circuit, and you may need to have an electrician evaluate the electrical system.