EG4 › GridBOSS smart ports and relays
GridBOSS AC-coupled port produces no power
reported more than once
Symptoms
- 14 legacy Enphase IQ8A microinverters through a combiner/Envoy box, feeding a 240V line into a GridBOSS smart port configured as AC-coupled PV, produce no power at the combiner
- Setting the smart port to Smart Load instead gets power flowing, but is the wrong configuration for the purpose
- In a second, unresolved case AC-coupled microinverters lose their reference after an overnight discharge cutoff and do not restart in the morning (a Dark Start configuration question)
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.