Charger shows E010 and does not respond to start commands; display may be dim or flicker.

Warning: Internal power supply work involves exposure to mains and high-voltage DC. Only qualified personnel should service.

• Power cycle: Turn off the breaker for 2–3 minutes, then restore power and observe if the display and LEDs return to normal brightness and if E010 clears.
• Check for burning smell: If you notice a burnt odor from the charger housing, immediately disconnect power and do not use the unit.
• Internal inspection (technician): A technician should inspect the control board’s auxiliary power section for burnt components, swollen capacitors, or cracked solder joints, and verify low-voltage outputs with a multimeter.
• Harness check: Ensure all low-voltage harness connectors between the power module, control board, and user interface board are fully seated and free of corrosion.
• Replace control/power board: If the auxiliary supply is defective, replace the main control board or power module according to ABB service procedures.