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Discussion Starter #1
I have a 20 amp circuit in my home that powers several bedrooms and a hallway light. The power runs to the light fixture in the hallway and then ends at switch. The problem is that I noticed the wire from the light to the switch seems to be 14 gauge wire. Do I need to open up the wall to swap this wire out with 12 gauge? It has been that way for at least the past 15 years since I have owned the home.

thanks!
 

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If this is 14 gauge wire on a 20 amp circuit then you have two options. Replace the existing 14 gauge with 12 gauge or replace the breaker with a 15 amp breaker.
 

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Scared Electrician
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this sounds like another entry in the ULEC(urban legend electrical code). Some people believe that it is ok to install 14ga switch loops on larger circuits. this at times has been a popular error.
 

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Discussion Starter #4
this sounds like another entry in the ULEC(urban legend electrical code). Some people believe that it is ok to install 14ga switch loops on larger circuits. this at times has been a popular error.

It's always nice to find little surprises in the walls when I open them up. This one is not that bad. The last one I found was two circuits wired together in a buried junction box...
 
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