DIY guideBreaker panel

Find which breaker runs what, and label the panel

Switch breakers off one at a time, see what goes dark with a lamp, and write a clear label. The small door only.

6 steps

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Tell everyone the power will go off in places. Save any computer work first.
Never switch off the power to medical equipment someone is using.
Plug a lamp or a plug-in tester into the outlet you want to map, and switch it on.
Open the panel's small door, and switch one breaker off.
Only the small door, never the cover. Stand on a dry floor with dry hands.
Check the lamp and the room lights. Note what lost power, then switch that breaker back on.
Write the rooms beside that breaker on the panel's label, in plain words. Do the same for each breaker.
If a breaker is hot or buzzing, or trips right back, leave it off and ask Handyman for an electrician.

Handyman says: Leave it off. I'll find an electrician.

Free for every home. Handyman asks a few questions, then books a pro it trusts.