The OEM 120 VAC charge cable uses a 15 A GFI plug. A charging Roadster draws the full 15 A, and many household outlets are daisy-chained rather than dedicated. Undersized or loaded circuits create voltage drop and heat at the plug, which cooks the low-tech GFI board. These units often don’t fail cleanly—they limp along, delivering sub-standard current until they quietly quit.
Direct replacement GFI plug
• Quick swap with a #2 Phillips screwdriver
• Low cost, restores reliable 120 V charging
• Smart preventative maintenance (“cheap insurance”)
Yellow Charge Cable Rebuild
• Replaces the failure-prone GFI with a rugged molded plug (no GFI PCB)
• Extends cable length from 12 ft → 25 ft
• Upgrades conductor from 12 AWG → 10 AWG, rated 30 A (vs. 20 A) for cooler operation and greater durability
Bottom line: The OEM GFI plug is the #1 cause of Roadster charge-loss incidents we see. Replace it proactively—or remove it entirely with the Yellow Charge Cable Rebuild—to keep your Roadster charging safely and reliably.