I just installed a smart switch (Leviton Decora) in my garage and the switch works fine. But I soon noticed that the circuit controlling outlets in the closest room to the garage keeps breaking. I think it has something to do with the neutral bundle.
The original wiring included three bundled neutral wires. The smart switch did not come with a pigtail but I bought a 14 gauge wire at Lowes, added it to the bundle and connected the other end to the smart switch. As I mentioned, the switch works fine but I’m wondering if adding the new neutral to the bundle could have created an overload that’s affecting the circuit in the neighboring room. Thoughts?