Epcom Power Line
24
| RT Series True Online UPS
RT Series True Online UPS |
25
Problem
Possible Cause
Solution
Fault icon display, audible
buzzer alarm continually,
the fault code is 55-59
Input NTC fault
Contact the supplier
Fault icon display, audible
buzzer alarm continually,
the fault code is 60-64
Power fault
Check whether the input & output
power are normal or not, contact the
supplier if it is abnormal.
Fault icon display, audible
buzzer alarm continually,
the fault code is 65-69
Input fuse fault
Check if the input fuse is burnt. Replace
the old fuse and restart the UPS. If the
problem persists, contact the supplier.
Fault icon display, audible
buzzer alarm continually,
fan icon in the LCD flickers
Fan fault
Check whether the fans are connected
and fixed well or not, and if fans are not
broken. If all seems fine, contact the
supplier.
UPS fail to start when
operate ‘On’ key
Pressing time too short
Press the power key more than
2 seconds to start the UPS
The input connection is not
ready or UPS internal
battery disconnect
Connect the input well, if the battery
voltage is too low, disconnect the input
and start the UPS with no-load
UPS internal system fault
Contact the supplier
Back up time become short
Battery undercharge
Keep the UPS battery recharging
more than 3 hours
UPS overload
Check the load level and disconnect
the non-critical equipments
Battery maturing,
capacity descend
Replace with new batteries, contact
the supplier to get the new batteries
and spare parts.
UPS doesn’t have any power
going through even mains
power on
UPS input breaker
disconnected
Reset the circuit breaker by manual.
When the output is short-circuited, the action of UPS protection will show up. Before
turning off the UPS, make sure to disconnect the entire loads and cut off the mains
power supply, otherwiseit will make the AC inpushort circuit.
CAUTION
Note:
