Charger powers on but will not start charging; no error code displayed, vehicle shows 'charging not started'.

Safety first: This is a control issue; no high-voltage work is needed for basic checks.

• Check current setting: In the BYD app or interface, verify that the maximum current is not set to 0 A or an extremely low value.
• Disable schedules: Turn off all scheduled charging and smart modes, then try starting a manual charge.
• Test start control: Press the physical start/stop button (if present) and observe if the display acknowledges the press. If not, the button or touch panel may be faulty.
• Power-cycle: Turn off the breaker for 2–5 minutes, then restore power and retry.
• Firmware update: Apply any available BYD firmware updates to address potential software bugs.