Emergency & exit lighting
Exit signs, emergency fittings, batteries and testing.
Exit sign not illuminated
An illuminated exit sign is dark — it may have lost supply, failed its lamp/LED, or have a faulty driver. A life-safety fitting that must be kept working.
Emergency light fails its discharge test
An emergency fitting works on mains but won't stay lit for the required duration when tested (mains removed) — usually a failed/aged battery, but can be charging or lamp issues.
Emergency light stays on / won't go back to normal
An emergency fitting stays in emergency (battery) mode or its charge/fault LED stays wrong even with normal supply present — pointing at the supply sensing, charging, or the fitting.
Emergency lighting circuit tripping / dead
A whole emergency lighting circuit is dead or its protective device trips — taking multiple life-safety fittings out at once, which must be restored quickly.
Automatic emergency-light test system reporting faults
An addressable / automatic emergency-lighting test system is flagging faults or losing communication with fittings — common in larger commercial buildings.
Emergency light charge indicator off (not charging)
An emergency fitting's charge indicator (usually a small LED) is off, meaning the battery isn't charging — it will then fail when tested or in a real outage.
Maintained/non-maintained emergency fitting behaving wrong
An emergency fitting is in the wrong mode — a maintained fitting that should stay lit is off in normal use, or a non-maintained one is on all the time — usually a wiring/configuration issue.