Enphase › wired control communication
Device not detected, 24-volt control header error
manufacturer says
Symptoms
- At commissioning a battery or System Controller is not detected, the app raises a 24-volt control header error, or a System Controller 3/3G shows 'System Controller not reporting' with operation mode Grid Mode Unknown
- The Communications Kit 2 has power but every device on the control network has stopped reporting
- A connector that looked plugged in pulls out on a tug test
Alerts and codes
24-volt control header errorDC connector indicator window red (battery-to-microinverter connector)System Controller not reportingGrid Mode Unknown
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.