What each entry covers
What broke
Symptoms, alerts, LED states and app messages matched to the failure behind them, with how many field reports back it up.
What fixed it
The fixes that worked, who did them (owner, installer or manufacturer), and when to escalate instead.
What it costs
When the fix needs a part: part numbers and supersessions, with recent sold and asking prices from public listings, each dated.
Five brands, one lookup
Tesla Powerwall
Powerwall 1, 2, + and 3, Backup Gateway 1 and 2, the Neurio meter and the app.
Open Powerwall →SolarEdge
HD-Wave and Energy Hub inverters, the Energy Bank battery, StorEdge and the Backup Interface.
Open SolarEdge →Enphase
IQ Battery, Envoy and IQ Gateway, IQ microinverters and the System Controller.
Open Enphase →Generac PWRcell
PWRcell inverter, battery cabinet and modules, ATS and PWRview.
Open Generac →EG4
18kPV, 12kPV, 6000XP and FlexBOSS inverters, LifePower4, LL and PowerPro batteries, GridBOSS.
Open EG4 →Most reported failures
- Gateway CT readings wrong, doubled, halved, or swappedTesla Powerwall
- Gateway shows Server not connected, strong signal nearbyTesla Powerwall
- Powerwall 2 shows Low Energy Lockout, disabled remotelyTesla Powerwall
- Time-Based Control charges or discharges unpredictablyTesla Powerwall
- PV string production far below expected estimateTesla Powerwall
- Inverter LED goes from green to solid blueSolarEdge
- Inverter shows 0% SOC, no battery communicationEG4
- Third-party inverter fails, Tesla app shows nothingTesla Powerwall
Every entry shows its evidence.
Fixes are ranked by how often they were confirmed in the field, and entries nobody has confirmed yet say so. Prices carry the date of the listing they came from. Where reports disagree, both are shown.
Out-of-warranty work on Powerwall, SolarEdge, Enphase, Generac and EG4 systems.