1 — Confirm it's a WiFi issue
Inverter display or status LED active, but the monitoring app shows offline? That's a reconnect job. Display dead, error code shown, or breaker tripped? Skip to PSW Life Support instead.
2 — Know the usual culprit
Almost every inverter WiFi problem we see in Perth comes back to the same root cause: inverter WiFi modules connect to 2.4 GHz networks only. New router, mesh upgrade or combined-band SSID? Make sure a 2.4 GHz network is visible to the inverter.
3 — Pick your brand guide
Check the wall-mounted unit for the brand, then follow the matching guide — diagnostics, primary method, fallbacks and LED meanings included.
Alpha ESSFroniusGoodWeGrowattHuaweiSAJSigenergySMASolarEdgeSungrow
Still offline after 24 hours?
Contact PSW Life Support with your inverter details, the guide you followed and the steps you tried — we'll take it from there with free remote support.