faultindicator
nounUK /ˈfɔːltˌɪndɪkeɪtə/
US /ˈfɔltˌɪndɪkeɪtər/
A fault indicator is a small light or sign that shows when something is broken or not working.
The fault indicator on the machine turned red, so the worker knew it needed fixing.
RELATED WORDS
OTHER MEANINGS
2. A device in power lines that shows which section of the line has a problem.
The crew used the fault indicator to find the broken power line quickly.
3. A software symbol that marks a problem in a program or system.
The app showed a fault indicator next to the file that failed to load.
4. A gauge or marker on a car dashboard that warns of a mechanical issue.
The fault indicator lit up when the engine started overheating.