By Commercial Service Company · November 3, 2026
How Storms and Utility Switching Damage Your Equipment
Central Arkansas gets hit with a lot of fast-moving storm fronts, and along with them comes a less obvious threat: electrical surges. A surge doesn't have to come from a lightning strike close by. It can come from the utility company switching circuits during an outage, a transformer nearby failing, or even equipment inside your own building cycling on and off. Compressors, large motors, and walk-in cooling units all draw heavy current when they start up, and that spike can ripple through your wiring and hit the sensitive control boards on everything else connected to the same panel.
Modern refrigeration units, ice machines, beverage dispensers, and kitchen equipment all run on circuit boards now instead of simple mechanical relays. Those boards are efficient and precise, but they're also delicate. A surge that lasts only a fraction of a second can be enough to fry a control board, a sensor, or a compressor's start relay. The equipment may still run afterward, but it can start acting erratic, throwing error codes, cycling incorrectly, or failing outright a few days later.
Whole-Panel Protection vs. Point-of-Use Protection
There are two layers of surge protection worth understanding, and most businesses benefit from both.
- Whole-panel protection installs at your electrical panel and is designed to catch large surges before they spread through the building's wiring to every piece of equipment downstream. This is the first line of defense against surges coming from the utility line or from major equipment cycling elsewhere in the building.
- Point-of-use protection sits closer to an individual piece of equipment, plugged in or wired just ahead of it. It catches smaller surges generated inside the building, and it adds a second layer of defense for equipment that would be especially costly or disruptive to lose.
Neither one replaces the other. Whole-panel protection handles the big hits; point-of-use protection handles the smaller, closer ones and protects specific equipment if the panel-level protection is ever overwhelmed.
Which Equipment to Protect First
If you're deciding where to start, prioritize the equipment that's most expensive to replace, most disruptive to lose, or most likely to hold perishable product.
- Walk-in cooler and freezer control systems
- Reach-in refrigeration and prep tables with electronic controls
- Ice machines
- Beverage and soda dispensing systems
- Combi ovens, fryer controllers, and other electronic kitchen equipment
- POS systems and networking equipment tied to the building's electrical system
A walk-in going down over a weekend because of a fried control board doesn't just cost the price of the repair. It can cost an entire inventory of product. That's why refrigeration and ice machines are usually the equipment worth protecting first, even on a limited budget.
Signs Your Equipment Already Took a Hit
Surge damage isn't always obvious right away. Watch for equipment that starts throwing intermittent error codes, control panels that go blank or reset on their own, compressors that short-cycle, or units that run fine for a few hours and then stop responding. If you've had a recent storm, outage, or utility work in your area and equipment starts behaving oddly afterward, that's worth a service call before the problem gets worse or takes other equipment down with it.
Let a Licensed Technician Handle the Wiring
Installing surge protection, whether at the panel or at individual pieces of equipment, involves working inside live electrical systems. That's not a DIY project, and it's not something to hand off to just anyone. A licensed technician needs to look at your panel, your equipment load, and how your building's power is actually wired before recommending where protection should go. The same goes for diagnosing whether a piece of equipment that's acting up has already suffered surge damage — that's a job for someone who can safely test the components involved.
If storms have rolled through central Arkansas recently, or you've noticed refrigeration, ice machines, or kitchen equipment acting unpredictably, give Commercial Service Company a call at 501-548-2374. We've been servicing commercial refrigeration, kitchen equipment, and electrical systems for businesses in Little Rock, Conway, Benton, Bryant, Maumelle, Jacksonville, Searcy, and Russellville since 1976, and we can help you figure out where surge protection makes the most sense for your building and your equipment.