Installation guide

UPS - USER’S MANUAL
3
Trouble Shooting
Symptom Possible Cause Remedy
Power cord is not properly
connected.
Check the power cord
Battery is empty Fully charge the battery (up to 14
hours)
LED Display is not working.
Battery defect Contact the Trust helpdesk
(www.trust.com)
Alarm buzzer beeps
continuously when AC supply is
normal.
Overload of the UPS (>600W) Reduce the load of the UPS
Overload of the UPS Reduce the load of the UPS Battery time is shorter each
time the power fails.
Battery Voltage is too low Charge the battery for 14hours or
more
Cable is not properly connected Check if the USB/RS232 cable is
firmly connected to the PC
Check the settings of the software
In the manual (located on the
CD)
Communication is lost between
UPS and PC.
(Device status: not connected)
Software is not installed well
Reinstall the software
Power cord is loose Reconnect the power cord
properly
Mains power is normal but LCD
display’s Battery mode.
Circuit breaker is broken Reset the circuit breaker. (see
section above)
Resetting the Circuit Breaker
UPS completely off. (disconnect mains power)
Press the Circuit Breaker ‘D’
Reconnect the UPS