Electrical panel maintenance checklist
Updated August 2026
You do not open an electrical panel to maintain it; you watch it. Once a year, look, listen, and smell for scorch marks, buzzing, or a breaker that feels warm, and test the AFCI and GFCI breakers monthly by pressing their test buttons. Keep three feet of clear space in front of it. A panel lasts 25 to 40 years, but a recalled Federal Pacific or Zinsco panel should be replaced now, a $1,500–4,000 job.
| Task | Interval | Effort |
|---|---|---|
| Press the test button on each AFCI and GFCI breaker | Monthly | 5 min · DIY |
| Confirm each trips and resets cleanly | Monthly | 2 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Look for rust, scorch marks, or discoloration | Yearly | 5 min · DIY |
| Listen and smell for buzzing or burning | Yearly | 2 min · DIY |
| Feel the cover for warm spots (do not open it) | Yearly | 2 min · DIY |
| Check the door closes and labels are legible | Yearly | 5 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Have an electrician torque and thermal-scan it | 3–5 years | $150–300 pro |
| Task | Interval | Effort |
|---|---|---|
| Replace a Federal Pacific or Zinsco panel | ASAP | $1,500–4,000 pro |
What neglect costs
A panel fails quietly until it does not. A loose lug or a worn breaker develops resistance, heats up, and starts to arc, which is why a buzzing or warm panel is a genuine fire warning and not something to sleep on. Recalled Federal Pacific and Zinsco panels are worse: their breakers can fail to trip on an overload, so the wire overheats instead. Insurers increasingly refuse or surcharge homes that still have them, which is one more reason a $1,500–4,000 replacement beats the alternative.
Leave these to a pro
Everything behind the cover is a licensed-electrician job, full stop: the busbars carry 240 volts even with the main off in some designs, and an arc flash is not a DIY risk to take. Have a pro pull the cover every 3 to 5 years to torque the lug connections, thermal-scan for hot spots, and check for double-tapped breakers and corrosion, usually $150–300. Panel replacement or an upgrade from 100 to 200 amps runs $1,500–4,000. Your side is the monthly test buttons and the yearly look, listen, and smell from the outside.
This whole checklist ships as reminders in OnOtto: every task above, on the right schedule for your home, snooze-proof.
Load this checklist as remindersFrequently asked questions
How often should I test GFCI and AFCI breakers?
Monthly is the standard, and it takes under a minute. Push the TEST button on each GFCI or AFCI breaker (or on GFCI outlets); the breaker should trip to the off or middle position, then reset when you push it back on. If it will not trip, or trips but will not reset, the device has failed and no longer protects that circuit, so replace it. These breakers wear out faster than the panel, often in 10 to 15 years, and a dead one gives no outward sign until you test it.
How do I know if my electrical panel is failing?
The tells are sensory and behavioral: a burning or ozone smell, a buzzing or crackling hum, breakers that feel warm or trip repeatedly, flickering lights across the house, or rust and scorch marks on the panel face. Federal Pacific, Zinsco, and some fuse boxes are failing by design regardless of symptoms. Any burning smell or hot breaker means kill the main if it is safe, then call an electrician the same day. Nuisance tripping alone is often just an overloaded circuit, but it still deserves a look.
How long does an electrical panel last, and when must it be replaced?
A well-made panel lasts 25 to 40 years, but age is not the only trigger. Replace it early if the brand was recalled, if you are still on a 60 or 100-amp service and adding an EV charger, heat pump, or major addition, or if an electrician finds corrosion, overheating, or no room for circuits. A modern 200-amp replacement runs $1,500 to 4,000 depending on the service upgrade and whether the meter and grounding also need work. It is one of the higher-value safety upgrades in a house.