Electrical panels
The electrical panel is the heart of your installation. Like any equipment, it ages, and it can become insufficient when you add appliances or renovate.
Watch for these signs: breakers that trip often, flickering lights, a burning smell, heat marks or rust, a fuse panel, or not enough capacity for new appliances such as an EV charger.
If any of these appear, have your panel inspected by a qualified electrician. Never open a panel yourself: it is dangerous.