Fault Description:
The grid relay is still open when the relay close signal is sent.
The connector of the grid relay signal control cable is loose, which causes the disconnected signal cannot be transmitted or the Grid relay damage .
The home load can only be powered by aPower and solar. The Grid cannot enter the aGate to supply the home load. so It is very likely that there is no power supply home load because the battery is exhausted .
Past Fixes:
Temporary measures by the user : The user manually turns the Grid relay operating handle to the position "On" , restore the mains supply to the household
Temporary measures taken by the installer:Remove the Grid relay cover , tighten the loose connector .
Troubleshooting Actions: