The answer to 'gutter guards clogged gutters' is that gutter guards can sometimes become clogged, leading to water backup and overflowing gutters. This is often caused by debris like leaves, twigs, and pine needles accumulating on top of the gutter guards over time. Symptoms include water spilling over the sides of the gutters, gutters overflowing during rain, and visible debris on the gutter guards.
The best solution is to regularly clean and maintain the gutter guards. This typically involves removing the guards, clearing out any debris, and then reinstalling them. For severe clogs or if you're not comfortable doing this yourself, it's best to call in a professional roofing or gutter cleaning service to handle it.