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.