How to tell if a light switch is defective
Light switches seem to be one of those few household appliances that last forever and are generally only replaced when style dictates. However, eternity is a long time and, even if they are durable, light switches inevitably have to be replaced . The good news is that there are fairly clear signs that a switch is failing, which allow you to tell when it needs to be replaced. It is important to be able to recognise these signs, because a faulty light switch is a fire hazard, as well as being frustrating to use! What are the causes of a faulty light switch? The toggle levers of light switches physically create and break electrical connections by moving contacts back and forth. Over time, these moving parts are subject to wear due to friction, which can cause an electrical arc. What are the signs that a light switch is about to fail? Flickering lights If the lights start flickering and cannot be remedied with a new bulb, a faulty light switch may be the cause. This problem can ...