Quck answer
To replace the on/off rotary lamp switch, follow these steps:
1. Unplug the lamp from the power source.
2. Remove the lampshade and bulb.
3. Unscrew the retaining nut or cap that holds the switch in place.
4. Disconnect the wires from the old switch, noting their placement.
5. Connect the wires to the new switch, matching their placement.
6. Screw the retaining nut or cap back on to secure the new switch.
7. Replace the bulb and lampshade.
8. Plug the lamp back into the power source.
Now you have successfully replaced the on/off rotary lamp switch.
Lamps have different types of switches to turn them on and off. One of the most common ones is the rotary switch. The rotary lamp switch includes a threaded stem with a plastic knob at one end. The other end of the threaded stem connects to the switching mechanism inside the light socket. Often, the on/off knob of the rotary switch may become stripped or cracked, requiring replacement. Replacing the on/off knob on a rotary switch takes less than a minute.
Step 1
Loosen and remove the old on/off knob from the threaded stem part of the rotary switch by turning it counterclockwise.
Step 2
Take the old knob to a hardware or home improvement store to ensure that you purchase an identical knob. Knobs are available in various colors and styles.
Step 3
Place the open end of the knob over the threaded stem of the socket and twist it clockwise. Make sure to screw the knob straight onto the stem to avoid cross-threading. Keep turning the knob until it operates the on/off mechanism of the switch.