Wall Switches Need To Be Inspected And Replaced Regularly.

The Wall Switch that has been used in the home for many years without being replaced may have already developed hidden dangers. Over time, the internal metal contacts and wiring connections of the wall switch may loosen due to wear, corrosion, or aging. This means that when you switch on or off lights or sockets, the current cannot flow steadily, which can easily cause arcing, overheating, and pose a risk of electrical fire or electric shock.

If an old switch feels hot to the touch, operates slowly, flickers, is loose, or makes unusual noises, these all indicate that the internal structure of the switch has lost its original stability. Similar conditions have been listed as typical signs of "switch failure" by several professional electrical organizations.