Never Change Dryer Cord 3 Prong to 4 — It’s Illegal & Dangerous

Changing a dryer cord from 3-prong to 4-prong is not a “laundry secret”—it is a prohibited, life-threatening electrical modification that violates the National Electrical Code (NEC) Article 250.140, voids Underwriters Laboratories (UL) certification, and creates an ungrounded fault path capable…

