Is My Panel Safe?

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Your electrical panel is the control center for every circuit in your home. When it works right, you never think about it. When it doesn't, it can fail exactly when you need it most — during an overload or a short circuit — and that's how electrical fires start.

Most panels do their job quietly for decades. But two brands installed in millions of American homes have documented failure histories, and any panel past 40 years old deserves a hard look. Here's how to tell if yours is one of them.

Federal Pacific's Stab-Lok breakers have a documented history of failing to trip when a circuit overloads. In testing by the U.S. Consumer Product Safety Commission, a large share of Stab-Lok breakers failed to trip — in some test groups, more than half. When a breaker doesn't trip, wires can overheat inside your walls.

The CPSC investigated in the early 1980s and closed the case in 1983 without a recall — not because the panels were found safe, but because the agency said it lacked the budget and data to force one. Underwriters Laboratories withdrew the Stab-Lok listing. A New Jersey court later found that Federal Pacific had sold breakers that didn't meet UL standards. These panels were never officially recalled, and millions are still in service.

How to spot one: Look for "Federal Pacific," "FPE," or "Stab-Lok" printed on the panel door or on the breakers themselves. Stab-Lok breakers often have red, orange, or black handles.

Zinsco panels fail differently but just as seriously. Their breakers are known to melt and fuse to the bus bar — the metal strip that carries power through the panel. A fused breaker can't trip, and it can keep conducting electricity even when it looks switched off. Zinsco panels also suffer from bus bar corrosion, loose breaker connections, and arcing inside the panel. Industry reports put the failure-to-trip rate for Zinsco breakers far above the normal rate for breakers of other brands.

How to spot one: Look for "Zinsco," "Sylvania," or "GTE-Sylvania" on the panel. Many Sylvania-labeled panels are rebranded Zinsco panels with the same design.

Even if your panel isn't one of the two brands above, age matters. A panel over 40 years old was built for a home that used far less electricity — no EV charger, no home office full of equipment, no high-draw appliances running at once. Older panels can also have worn connections and breakers that no longer respond the way they should.

Two practical reasons to act: home inspectors routinely flag these panels during real estate transactions, and some insurance companies now refuse coverage or charge higher premiums for homes with FPE or Zinsco panels.

- A burning smell, scorch marks, or discoloration around the panel
- A panel cover that feels warm to the touch
- Buzzing, crackling, or humming from inside the panel
- Breakers that feel loose, won't stay reset, or trip and won't reset
- Lights that flicker or dim when an appliance starts
- A panel you know is Federal Pacific, Zinsco, or 40+ years old

Don't open the panel or try to test breakers yourself. If you see scorch marks or smell burning, call us right away.

Call 616-299-2682 and we'll send a licensed electrician to inspect your panel and tell you straight whether it's safe, what it would take to fix it, and what it costs — no pressure.

If your panel needs to go, a typical AAE panel replacement includes:
- A new Square D Homeline panel, sized for your home's real electrical load
- A whole-panel surge protector
- Permit handled with your township or city
- Clean, labeled breakers and a walkthrough of your new panel
- Our 1-year workmanship warranty

Most panel replacements are completed in one day.

Current offer: $250 off a service upgrade. Ask about it when you call.

Service area: Grand Rapids, East Grand Rapids, Walker, Byron Center, Rockford, Hudsonville, and nearby West Michigan communities.

All Aspects Electric & Security — Covering All Aspects of the Electrical Industry Since 2005.