33
Table of Malfunctions
Symptom
LCD display or possible
cause
Solution
The fault LED is lit,periodic
beeps
Overload in bypass or
inverter mode
Remove some load,loading
level shall be less than the
nominal capacity
Mains our of tolerance
Check that the input wiring
and input voltage are
normal
Battery disconnected
Check the battery breaker
and the battery wiring
The fault LED is lit,periodic
beeps
UPS fault
Contact customer service
center
Battery discharging time
less than 1/3 of initial
discharging time
Battery exhausted
Charger fault
LCD panel has no display
Long press ESC 3s,LCD
replacement
If problems still exist, please contact service hot line at 86-0519-85190886-8117
and provide the following information:
MODEL and SERIAL NO of the UPS;
Failure date;
Detailed failure description (including LCD malfunction, indicator condition, buzzer
information, power and load capacity etc.).
