⚡️ Keys'
You may feel heat while turning the power switch on and off and touching it, especially when the switch is left on for too long. In most cases, this symptom is considered normal, but you should note that the hot feeling when touching the key is harmful. Light switches should always look cold or neutral in terms of temperature. When you feel the heat when you touch the switch, it is time to buy a new light switch.
⚡️ The moment
Sometimes, you may see small sparks when turning the light switch on and off. This condition is called arc load and it usually occurs when the internal connections of the light switch are separated or are being separated. If in this case you hear a big spark along with a knocking sound, the light switch is probably completely broken. If you see signs such as smoke and burning in the switch, you should get a new switch.
⚡️ Creating noise and noise in the key
Usually healthy and properly functioning keys do not have any noise. As soon as you hear buzzing or other sounds from the key, you should know that the key is not healthy and there is a problem and it is time to replace the key with a new one. Reliable and important manufacturers of electrical equipment produce electrical switches without the slightest sound.
⚡️ Occasional function in the key
All of us during our life have definitely come across electrical switches that do not work properly. Sometimes it turns on and off, and sometimes it doesn't, or it is possible that the lighting will not be fully established and it will blink. Replacing the bulb may not solve the flashing problem either. If this symptom occurs regularly, the connections inside the light switch are probably not connected properly and it is time to buy a new switch and replace it with the old one.