Safety Guide

Know when to stop troubleshooting and follow official emergency, manufacturer, or professional guidance.

Stop and follow emergency guidance first when needed

Lights connected to smoke, fire, carbon monoxide, gas, medical equipment, vehicle safety, electrical heat, sparks, or burning smells should be treated seriously. This site can help explain common signals, but it cannot replace emergency instructions, official manuals, or qualified professionals.

General severity levels

Normal: The light usually shows power, connection, charging, or ready status.
Check soon: The device likely needs a basic check, such as power, battery, Wi-Fi, paper, ink, or setup.
Caution: The device may have a fault or repeated issue that should not be ignored.
Stop using: Stop using the device until the issue is understood or repaired.
Emergency possible: Leave the area or contact emergency help when smoke, fire, gas, CO, or medical safety is involved.