Just realized I've been wiring my three-way switches wrong for years...

I was trying to install a new light fixture in my hallway and the traveler wire kept sparking when I tested it. I've done maybe a dozen of these in my own house and for friends, always using the same method from a YouTube video I saw back in 2019. The tip-off was when my voltage tester beeped on the neutral screw... that's when I knew I had the common and traveler wires swapped at every single switch. Has anyone else had to go back and rewire a whole house because of one bad habit?

2 comments

2 Comments

the_oscar4d ago

My buddy had a similar scare last year with his outdoor lights. He kept blowing fuses and couldn't figure out why, until an electrician friend traced it back to a reversed line and load at the first switch. He spent a whole weekend redoing every three-way in his place, muttering about old DIY books. Makes you wonder how many houses have little hidden mistakes like that, right?

brookes374d ago

My old apartment had sketchy wiring in every room. The previous owner clearly tried to DIY everything and failed. It's a miracle the place never burned down.