Safety first: Turn OFF power before removing the front panel.

1. Adjust viewing angle and lighting: Confirm that the issue is not just glare or viewing angle. Use a flashlight at an angle to see if characters are present but not lit.
2. Power cycle: Turn the breaker off for a few minutes, then back on to reset the UI.
3. Internal cable check (qualified): With power OFF, remove the front cover and reseat the ribbon cable between the display and UI board. Inspect for damage.
4. Replace display panel: If the backlight remains dim or off, replace the display panel or entire UI assembly as specified by Besenergy.

When to call a professional: For panel replacement, contact a technician.

Charger display is on but very dim or unreadable; charging may still function.

Possible Causes