3 Prong to 4 Prong Dryer Cord Change
Older homes typically have 3 prong outlets, but the National Electrical Code requires homes built after the year 2000 to have 4 prong outlets. While these same codes prohibit changing a 4 prong to a 3 prong. The Electrical safety codes allows changing the dryer's cord to match the existing outlet. Almost all manufacturers sell dryers without a cord attached, preferring to let customers choose.