Panel Upgrades

7 Signs Your Electrical Panel Needs an Upgrade

2026-09-18 · 6 min read

Key points

• Most homes built before the 1990s were wired for a fraction of the electrical load a modern household puts on them.
• Breakers that trip repeatedly, warm or discoloured panel parts, and a burning smell are urgent warning signs — stop using the circuit and call a licensed electrician.
• Federal Pacific Stab-Lok and Zinsco panels are widely regarded as unsafe and are usually recommended for full replacement.
• Most modern homes are served well by a 200-amp panel; many older Central Florida homes still have 60–100 amps.

Your electrical panel is the point where power from the utility is divided up and sent through your home, and it is the single component most responsible for stopping a fault from becoming a fire. It is also the part of the system homeowners think about least — until something goes wrong.

Most homes built before the 1990s were wired for a very different household: no EV charger, no induction range, no heat pump, no home office running three monitors and a server closet's worth of equipment. If your home still has its original panel, it is likely being asked to do more than it was designed for.

1. Your breakers trip regularly

A breaker doing its job occasionally is normal. A breaker that trips every time you run the microwave and the toaster together is telling you the circuit is overloaded. If you find yourself planning around which appliances can run at once, the panel and its circuits are undersized for how you actually live.

Repeated tripping on the same circuit with no obvious cause is different, and more urgent — it can indicate a short circuit, a ground fault, or a breaker that is failing to hold.

2. The panel is warm, discoloured, or smells burnt

This is the one item on this list that is not a "schedule it sometime" problem. A panel that is warm to the touch, shows rust or scorch marks, buzzes, or gives off a sharp burning-plastic smell may have loose or arcing connections.

If you notice a burning smell or see scorching, stop using the affected circuits and call a licensed electrician immediately. Do not open the panel cover yourself — the main lugs inside remain energised even with the main breaker off.

3. You still have a fuse box, or a 60–100 amp panel

Fuse boxes are not inherently dangerous when they are intact and correctly fused, but they are a strong sign that the service has not been updated in decades, and they are frequently found with undersized or over-fused circuits.

Service size matters too. Many older Central Florida homes were built with 60-amp or 100-amp service. Modern homes are typically served well by 200 amps. If you are adding central air, a pool pump, a workshop, or an EV charger, a 100-amp service is often the limiting factor.

4. You have a Federal Pacific or Zinsco panel

Two brands come up constantly in this conversation. Federal Pacific Electric (FPE) Stab-Lok panels and Zinsco panels have been the subject of long-standing, well-documented safety concerns — specifically, breakers that fail to trip when they should.

A breaker that does not trip under fault conditions defeats the entire purpose of the panel. These panels are generally recommended for full replacement rather than repair, and many insurers ask about them directly.

5. Lights dim or flicker when large appliances start

A brief, slight dip when a large motor starts — an air handler, a well pump — can be normal. Pronounced dimming throughout the house, or flickering that happens without an obvious trigger, suggests the service is strained or there is a loose connection somewhere in the system.

6. You are relying on power strips and extension cords

This is a circuit-count problem rather than a panel-capacity problem, but the two usually arrive together. If every room has a power strip daisy-chained behind the furniture, the home does not have enough circuits or enough outlets. Adding circuits requires space in the panel — and older panels are frequently already full.

A related warning sign is double-tapped breakers: two wires landed under a breaker terminal designed for one. It is a common shortcut when a panel runs out of space, and it is a fault risk.

7. You are planning an addition, a renovation, or an EV charger

The best time to evaluate the panel is before the project, not during it. A Level 2 EV charger, a new HVAC system, a pool heater, or a kitchen renovation all add substantial load. Finding out mid-project that the service needs upgrading is the expensive version of this discovery.

What a panel upgrade actually involves

A service upgrade usually means replacing the panel and breakers, and often the meter can, service entrance conductors, and grounding and bonding system to bring everything to current standards. It normally requires a permit and an inspection, and coordination with the utility to disconnect and reconnect power.

That permit-and-inspection step is worth insisting on. It is your independent verification that the work was done correctly, and unpermitted electrical work can create real problems when you sell the home or file an insurance claim.

Central Florida has one extra consideration: lightning

Florida records more lightning strikes than any other state, and the Orlando corridor sits in the densest part of it. A panel upgrade is the natural moment to add whole-home surge protection at the service entrance, which protects against the surges that individual power strips cannot absorb.

What to do next

If you recognised the urgent signs — burning smell, scorch marks, a hot panel — treat it as urgent. For everything else, an inspection by a licensed electrician will tell you your current service size, whether the panel has capacity left, and whether the brand has known issues.

Pro Electrical Service handles panel upgrades and replacements across Central Florida. Call 407-542-3161 for a free in-home estimate.

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