The answer to 'why is my fuse box dimming lights' is that a problem with the fuse box or electrical system is likely causing the lights to dim. This can be due to issues like an overloaded circuit, loose connections, or a failing component in the fuse box.
Dimming lights are a common symptom of electrical problems. The fuse box distributes electricity throughout your home, and if it's not functioning properly, you may notice the lights dimming, flickering, or even turning off completely. This is a sign that the electrical system needs to be inspected and repaired.