Growatt SPF3000TL-48P. EG4 Lifepower 48V. No PV. Battery at 80% per inverter display. Setting up prior to install, temporary 120v house power.
The comms circuit board in the access/wiring bay has 4 tiny surface-mount LEDs. When the inverter is on standby or on, the green is lit. While setting up the inverter, I had the DIP switches wrong (1000, instead of 0000), and when I attempted to switch from default AGM to Li, I got lost in the interface and accidentally set the Protocol from 01 to 02.
The inverter lit the front panel ‘fault’ lamp, beeped, and shut down. I was eventually able to correct the settings (afaik) and the fault lamp and warnings are gone.
However, the tiny green LED in the access bay comms board is flashing about twice per second, and a red LED next to it flashes in a long-short pattern. The system appears to be working properly: it’s charging the battery, it can power a space heater at 750w and 1,500w, as well as 7w for just its fan, and can do so on battery with no util power present, or on util power. But despite several complete shutdowns as well as disconnecting the battery, that pesky red LED is trying to tell me something.
Any clues to shutting that off? I can’t find anything in a search here or elsewhere, and Signature Solar Tech Support hasn’t been available and hasn’t done a callback after multiple attempts, and a LOT of waiting on hold.
The comms circuit board in the access/wiring bay has 4 tiny surface-mount LEDs. When the inverter is on standby or on, the green is lit. While setting up the inverter, I had the DIP switches wrong (1000, instead of 0000), and when I attempted to switch from default AGM to Li, I got lost in the interface and accidentally set the Protocol from 01 to 02.
The inverter lit the front panel ‘fault’ lamp, beeped, and shut down. I was eventually able to correct the settings (afaik) and the fault lamp and warnings are gone.
However, the tiny green LED in the access bay comms board is flashing about twice per second, and a red LED next to it flashes in a long-short pattern. The system appears to be working properly: it’s charging the battery, it can power a space heater at 750w and 1,500w, as well as 7w for just its fan, and can do so on battery with no util power present, or on util power. But despite several complete shutdowns as well as disconnecting the battery, that pesky red LED is trying to tell me something.
Any clues to shutting that off? I can’t find anything in a search here or elsewhere, and Signature Solar Tech Support hasn’t been available and hasn’t done a callback after multiple attempts, and a LOT of waiting on hold.
