East EA902P - Troubleshooting

25
7 Troubleshooting
When the system works in fault mode, the LCD displays as below:
Problem Possible Cause Solution
Fault icon display, audible
buzzer alarm continually, the
fault code is 00-14
Bus bar voltage fault
Test the bus bar voltage or contact the
supplier.
Fault icon display, audible
buzzer alarm continually, the
fault code is15-24
Soft start fault
Check the soft start circuit, especially
the soft start resistance or contact the
supplier directly.
Fault icon display, audible
buzzer alarm continually, the
fault code is 25-39
Inverter voltage fault Contact the supplier.
Fault icon display, audible
buzzer alarm continually, the
fault code is 40-44
Over temperature
inside
Be sure that the UPS are not
overloaded, and the fan vent is not
obstructed, as well as the indoor
temperature is not high.
Leave alone the UPS 10 minutes for
cooling, and restart it. If the problem
persists, contact the supplier.
Fault icon display, audible
buzzer alarm continually, the
fault code is 45-49
Output short-circuit
Turn off the UPS and disconnect all the
loads. Be sure there is no any fault or
internal short circuit of the loads.
And then restart the UPS. If the
problem persists, contact the supplier.
Fault icon display, audible
buzzer alarm continually, the
fault code is 50-54
Overload
Check the load level and disconnect
the non-critical equipments, recount
the total capacity of your load and
reduce the load to the UPS.
Check whether the load equipments
has fault or not.
Fault icon display, audible
Input NTC fault
Contact the supplier.
Fault icon
Fault code