By Commercial Service Company · August 17, 2026
Your electrical panel is the heart of every system in your building—coolers, fryers, HVAC, ice machines, POS terminals, lights. When it starts sending signals that something is wrong, those signals are easy to ignore until a breaker trips during your Friday dinner rush or a cooler quits overnight. In central Arkansas we see the same panel problems again and again across restaurants, groceries, and facilities. Here is how to recognize them early, and where the line is between "call it in" and "do not touch it."
Breakers That Trip Again and Again
A breaker doing its job once in a while is normal. A breaker that trips repeatedly is telling you something. It usually means a circuit is overloaded, a piece of equipment is drawing more current than it should, or there is a fault in the wiring. The wrong response is to keep resetting it or swap in a larger breaker—that defeats the safety device and can let a circuit overheat behind the wall.
- The same breaker trips on the same equipment repeatedly.
- Breakers trip when you add a new appliance or plug in during peak load.
- You have started leaving a breaker off because "it always pops."
Each of these points to a load or wiring issue that a licensed electrician should diagnose before it becomes a fire risk.
A Panel That Feels Warm to the Touch
An electrical panel should sit at room temperature. If the cover, a breaker, or the surrounding wall feels warm or hot, that heat is coming from resistance somewhere it shouldn't be—a loose connection, a corroded lug, or an overloaded bus. Warmth you can feel through a steel cover means real heat inside. Do not open the panel to investigate. Note it and get a professional out to test under load.
Buzzing, Humming, or Crackling Sounds
A healthy panel is silent. A steady buzz, a hum, or an occasional crackle or sizzle usually means electricity is arcing across a gap it shouldn't cross—often a loose breaker connection or a failing bus bar. Arcing generates heat and is one of the more common causes of electrical fires in commercial buildings. Sound coming from your panel is not something to monitor for a few weeks. It is a reason to call now.
Any Burning Smell
A hot-plastic or fishy, acrid smell near the panel means insulation, a breaker, or wiring is overheating—sometimes already melting. This is the most urgent sign on this list. If you smell burning at the panel:
- Keep people away from the panel.
- If it is safe to do so and you know your main disconnect, cutting power can reduce risk—but do not open the panel or handle anything you are unsure of.
- Call a licensed electrician immediately, and call the fire department if you see smoke or scorching.
Burning smells are never a wait-and-see item. Electrical fires build fast and often start inside walls where you cannot see them.
Flickering or Dimming Lights
Lights that flicker or dim—especially when a compressor kicks on, a walk-in cycles, or the HVAC starts—can point to loose connections, an undersized panel for your current load, or a failing breaker. Occasionally it traces back to a utility issue, but more often it is inside your building. Persistent flicker across multiple fixtures is worth a professional look, because the same loose connections that dim your lights are the ones that overheat.
Why This Is a Licensed-Electrician Job
Everything above involves live power at a level that can injure or kill, and diagnosing it safely means opening a panel, testing under load, and knowing code. This is not a DIY repair or a job for handy staff—please do not open the panel or attempt fixes yourself. A qualified commercial electrician can find the actual cause, verify the repair, and make sure your fix meets code so it passes inspection and protects your building. For older panels, they can also tell you whether a component is worn out or the whole panel is undersized for equipment you have added over the years.
Don't Wait for the Shutdown
The businesses that avoid emergency downtime are the ones that act on the first warning sign instead of the failure. If your panel is tripping, running warm, buzzing, smelling hot, or making your lights flicker, get it looked at before it takes a cooler or your whole operation offline.
Commercial Service Company has served central Arkansas businesses since 1976, from Conway and Little Rock to Benton, Bryant, Searcy, and Russellville. If your commercial electrical panel is showing any of these signs, call us at 501-548-2374 and we'll get a licensed technician on it.