The answer to 'flickering GFCI outlet' is that a flickering or intermittently tripping GFCI outlet is often caused by a loose connection, faulty GFCI, or an issue with the wiring. GFCI outlets are designed to trip when they detect a ground fault, which can be caused by damaged or worn wiring, water intrusion, or a malfunctioning appliance or device plugged into the outlet.
Some common symptoms of a flickering GFCI outlet include the outlet tripping frequently, lights or appliances flickering, or the GFCI outlet feeling hot to the touch. Troubleshooting a flickering GFCI outlet may require checking for loose connections, inspecting the wiring, or testing the GFCI itself. In some cases, the GFCI outlet may need to be replaced. If you're not comfortable working with electrical systems, it's best to call a licensed electrician to diagnose and repair the issue.