Connect your home load (lights, fans, etc.) to the output socket at the rear of the inverter.
| Display Code | Meaning | Solution | |--------------|---------|----------| | | Under voltage (<140V) | Check mains supply; use only when grid stable. | | E2 | Over voltage (>290V) | Call electrician – possible neutral failure. | | E3 | Overload / Short circuit | Reduce load (disconnect appliance) → reset unit. | | E4 | Internal temperature high | Improve ventilation; turn off for 30 minutes. | | E5 | Output relay stuck | Contact V-Guard service center. | | --- | No output but mains present | Check input fuse inside unit (requires technician). | v guard du 1000 smart user manual
open the top cover; there is a risk of high-voltage electric shock. Connect your home load (lights, fans, etc