Solar · Error codes
How do I read Lux Power E and W codes?
Short answer
Lux Power hybrids show E codes (faults that stop the inverter) and W codes (warnings) on the LCD and in the LuxPower monitoring app. Grid warnings W016-W018 clear when the grid is normal. For most E codes Lux's advice is to restart the inverter and contact Lux if it returns, which your installer should do. Checked 24 September 2026.
Last checked 24 September 2026 · 1 source
In more detail
- W020 PV isolation low and W021 leakage high: possible earth fault - installer
- W026/W027 battery low/open: check battery breaker via installer
- W028 UPS over load: reduce backup loads
- E012 UPS short circuit, E021 PV voltage high, E025 temperature over range
The facts, dated
- 01Lux supports Eastron SDM120/SDM630 Modbus meters for CT/meter
manufacturer · n/a · checked 24 September 2026 · luxpowertek.com
Sources
- luxpowertek.com — luxpowertek.com/wp-content/uploads/2022/02/Hybrid-3-6K-UM-2.0-04.pdf
Last checked: 24 September 2026