Genie fault code list: practical checks for GS scissor lifts. A good fault code list should lead you to the right circuit, not random parts swapping. On GS scissor lifts, many faults trace back to low battery voltage, coil circuit issues, joystick input problems, or broken control cables. Code 68 means low battery voltage, not overload. Code 02 usually points to a moving harness fault. Code 47 means the joystick is not returning to neutral. Codes 54 and 55 are lift coil faults. C021 means PCON not detected. Check the battery, wiring, and connectors before replacing modules. Start with the machine condition, then the power supply, then the moving harnesses.