faultyswitch

noun
UK /ˈfɔːlti swɪtʃ/
US /ˈfɔːlti swɪtʃ/

A faulty switch is a switch that does not work right.

The lamp would not turn on because it had a faulty switch.


OTHER MEANINGS

2. A switch that turns on and off by itself without being touched.

The faulty switch made the light flicker all night.

3. A computer or network switch that sends data to the wrong place.

The faulty switch kept dropping the office internet connection.

4. A switch that feels loose or makes a crackling sound when used.

Grandpa replaced the faulty switch before it could cause a spark.