The night the utility feed drops, your staff and guests follow the green letters above the door. If even one battery pack is dead or one sign is dark, the path to the stair feels uncertain. Monthly checks take minutes and they prevent that kind of failure on the worst possible evening.
Codes and insurance carriers expect a working egress path. Your local fire marshal office or building inspector sets the exact test schedule, and many sites combine a short monthly visual review with a longer annual test. This article describes a practical monthly rhythm that fits retail, office, and light industrial buildings across the states Garrett Mechanical serves, including Maryland, Virginia, North Carolina, and Georgia. Always align your internal checklist with the rules that apply to your certificate of occupancy.
What You Are Looking For
Emergency lighting and exit signs are two related systems. Exit signs mark the way out. Emergency units mount on walls or ceilings and turn on when normal power is lost so people can see steps, turns, and obstacles. Many modern signs combine both functions in one housing. Your walkthrough should confirm three things: the sign is illuminated under normal power, the lens is clean and readable, and the backup source is ready to carry the load when utility power stops.
Walk every egress path once
Start at the farthest occupied room and move toward the public way the same way a visitor would. Note any burned out lamp, flicker, or dim glow. **If you cannot read the word exit from a normal standing position, treat it as failed** and tag it for repair. Photograph the label on the unit so your vendor can order the correct replacement parts.
Check the little indicator lights
Most battery units show a small green or red pilot lamp that confirms charging. If the pilot is out, flashing, or a unit is buzzing, document the location. Those symptoms often mean the battery is at end of life or the charger board is faulted. Continuing to ignore the signal risks a dark corridor when the next storm knocks power out.
A Simple Monthly Test You Can Log
Many fixtures include a push to test button that cuts normal power to the unit for thirty seconds to several minutes. Press the button and confirm the lamps come on at useful brightness. When the test ends, the unit should return to normal charging without error codes. Keep a paper or digital log with the date, tester name, unit location, and pass or fail. That log is valuable during audits and after any incident.
- Duration: Follow the manufacturer sheet. If no sheet is posted, use the shortest interval your local code allows for functional testing.
- Coverage: Test at least one unit on each branch of the egress path, not only the sign above the front door.
- Failures: If a unit does not restore to normal charging, cordon off the area if needed and request electrical service the same day.
Cleaning and Physical Damage
Dust on a clear lens can cut perceived brightness by a surprising amount. Use a soft cloth and the cleaner your housekeeping team already approves for light fixtures. Look for cracked lenses, loose mounting screws, and signs of water entry near roof hatches or sprinkler leaks. Water inside a battery housing is a replace rather than repair situation in most cases.
Corridors with pallet jacks and rolling racks often suffer bumped signs. If the face is twisted or pulled away from the wall, the unit may still glow but fail under earthquake or impact requirements. Note those for correction during the next lighting repair visit.
Staff Training and Quiet Hours
Assign one primary and one backup person who know where the breaker panels are, which breakers feed exit circuits, and how to silence a chirping unit without disabling protection. Post a single phone list that includes your electrical contractor and the person who holds keys for electrical rooms. When you run a thirty second functional test during business hours, tell the front desk so a guest is not startled by a brief dimming in one corridor. In twenty four hour sites, stagger tests so the same stair tower is never dark twice in one shift. **Small habits like that keep monthly work from feeling disruptive** while still proving the hardware will answer when utility power is gone.
How This Fits Your Larger Safety Picture
Emergency lighting is only one part of readiness. Your building should also have a clear plan for who resets breakers, who talks to the fire department, and how you communicate with tenants during an outage. Our article on building an emergency response plan helps tie mechanical, electrical, and plumbing roles together. For deeper electrical system reviews beyond the monthly glance, commercial electrical safety inspections explain what a structured review typically covers.
Garrett Mechanical supports light electrical work that keeps exit paths dependable, including service aligned with safety and outage prevention priorities. When you need help with repeated nuisance trips, aging panels, or widespread sign failures, contact us so we can schedule a visit that matches your hours of operation.