Why does a light switch sometimes pop and crackle when I turn the light off ?
I see sparks and hear crackling when I flip the switch
The switch is old and has served it purpose .its easy to replace go to home depot it should be a single pole light switch. Turn electric to that circuit off and snip wires and replace.
u need to get someone to c that b4 a fire occur-------- A.S.A.P. u have a shortage
Loose wires. Maybe broken contacts... Replace