New! DIY Project Planner. Plan smarter, skip the spreadsheets. Start Your Free Trial Today →

Fix five common light switch issues — no power, flicker, delay, loose toggle, and buzzing — with safe DIY steps and guidance on when to call an electrician.

A clear, practical guide to home electrical circuits: wiring, breakers, grounding, 120/240V differences, common faults and basic troubleshooting.