PowerWalker VFI 1000E - Manual (Page 10)

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6. TROUBLE SHOOTING GUIDE
6.1 UPS Status and Action
The description of the following guideline may be helpful in problem solving.
1. LED and LCD status as below:
UPS STATUS:
AC utility power is normal. UPS is running normally, but battery
capacity is low (referring to Battery Status Menu). Buzzer beeps once
every second for battery low.
ACTION: Charger may broke down. Please replace charger board.
2. LED and LCD status as below:
UPS STATUS:
AC utility power is normal. The output load is supplied through bypass
of AC utility. Fault LED lits up and buzzer beeps continuously.
ACTION: Please contact your agent for service.
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3. LED and LCD status as below:
UPS STATUS:
AC utility power is normal but UPS is overloaded. Warning LED lits up
and buzzer beeps per second.
ACTION: Please reduce the critical load to POWER(%)<100%.
4. LED and LCD status as below:
UPS STATUS:
AC utility power is normal but UPS is overloaded up to 125%. Warning
LED does not fade out and buzzer beeps per 0.5 second.
ACTION: Please reduce the critical load to POWER(%)<100%.