PROBLEM :

Four Wire Power Cord Installation

SOLUTION :

AGENT ONLY-

A 4 WIRE SYSTEM CONNECTION is required for new or remodeled construction, mobile homes, or if local codes do not permit grounding through the neutral. If the 4 wire system is used, the dryer frame cannot be grounded to the neutral conductor at the terminal block.

See the illustration below for an incorrect ground wire on a 4 wire system.

A proper 4 wire installation will look like this: