A light switch has 4 wires sometimes 2 white and 2 black wires. This can be caused by different events.
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Why does my light switch have 4 wires. I have one in my kitchen and it scared me for years. Im moving a light switch to a different wall and have found that the cable from the switch to the light has 3 wires but i dont know why. The four way switch functions as a switching device for the traveler wires between the three way switches. While not commonly used four way switches are sometimes found in long hallways and in very large rooms that have more than two entrances. The whites are connected together with a short third wire. When you see a red wire in a light switch box it can mean two things.
4 wire or 5 wire thermostat wiring problem we have a 19 year old condo with an old carrier mercury thermostat. The 2 wire source feeds to an adjacent switch for a differ. A wire getting loose in a terminal screw or in a wire connector at the switch or light fixture could cause the flicker. Changing the light switch is a simple and inexpensive diy project. Understanding how the switch is wired is the most important part. We have both a natural gas furnace and an ac.
Or it could be the red wire is the wire going to the fixture and the black wires. The first time i saw a red wire on a light switch it certainly confused me. So i guess this switch is connected to my bathroom somehow and that is related to the 4th wire. For example after reversing the wires in order to put on my bathroom light i have to put on this light. We have both a natural gas furnace and an ac. It could be there is or once was a three way switch in play.
Which is called a pigtail connecting to the silver screw on the pull chain fixture. 4 wire or 5 wire thermostat wiring problem we have a 19 year old condo with an old carrier mercury thermostat. The blacks are also connected to each other with a short wire another pigtail to the brass screw on the fixture. When you turn on a light switch power goes to the light through the hot black wire and then back through the neutral white wire to the ground. You might notice this type of issue if the light bulb flickers while turned on. If i reverse the two push to release wires this switch seems to end up turning onoff a completely other switch in my bathroom.
A third problem that might be blamed on the light switch can actually caused by the light fixture itself. The three way switch is a variation of the standard single pole switch which controls a light only from one locationa third type is the four way switch which is used in conjunction with two three way switches to control lighting from more than two locationsthis configuration may be used in open plan homes or in large kitchens or great rooms where a central bank of lighting fixtures might.
Gallery of Why Does My Light Switch Have 4 Wires
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