The panel is the one system in the home where a wrong move carries real risk, so the line between your work and an electrician's work needs to be clear. This guide sets that line. It is a plain walk-through, not a substitute for a licensed electrician's judgment on any particular panel.

What you can do yourself

Keep the directory accurate. With the power on, walk the house and label each breaker by the room or load it feeds, using the panel's paper directory and a pencil. Update it whenever you add or move a load. Test the GFCI and AFCI test buttons on the schedule the panel manual gives. Reset a tripped breaker by switching it fully off and then back on. If it trips again, stop and note what was running. Keep the area in front of the panel clear, with the working space the door and local code call for, and never store anything inside the cabinet.

What goes to a licensed electrician

Replacing a breaker, adding or moving a circuit, changing the wiring, working on the bus, upgrading the service, and replacing the panel all go to a licensed electrician. So does opening the enclosure while it is energized. If a breaker keeps tripping, if an outlet or the panel itself runs hot, or if you notice scorching or a burning smell, turn off what you can safely turn off and call a licensed electrician promptly. Do not wait for your next walk-through.

What to ask the electrician

When you call, ask what they will change, which circuits they will touch, and how they will label the change. Ask whether the directory will be updated when the work is done, and whether you will receive a written note of what was altered. Keep that note with your records.

Where the line sits in your home

Write the split down so everyone in the household knows it. Note which tasks you handle, which go to an electrician, and who makes the call when a breaker trips at night. Keep the directory and your notes with your appliance folder. Compare the age of the panel with the electrical panel page on this site, which gives the typical service life and when to plan. Age is a planning input. The panel's condition and the changes in your household load decide the timing.