5 Reasons Cheap Extension Cords Fail Outdoors

Moisture gets in Standard indoor cords lack sealed plugs and jackets. Rain seeps into the connection, causing current leakage that trips the GFCI.

The jacket is too thin Indoor cords use lightweight plastic that cracks or absorbs moisture. Outdoor cords need a thick, rubberized jacket labeled “W-A” or “outdoor.”

Plugs aren’t molded Cheap cords have separate plug pieces that let water inside. Outdoor cords have molded, watertight plugs that keep connections dry.

The cord lies in puddles Even an outdoor cord fails if it sits in standing water. Keep the cord off wet ground and ensure the receptacle has a weatherproof cover.

The GFCI itself may be the problem Some GFCIs are more sensitive than others and trip easily. If the cord is heavy-duty and connections are dry, replace the outlet—it’s a ten-minute fix.