Easystat EA906S - Fault Mode; The Warning Code List of the LED Light and Display Panel; Appendix 1: the Table of the Fault Code

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When the input mains meets the input range of the ECO mode and the ECO function is on, the UPS will
works in ECO mode. If input AC mains exceed the range of ECO several times within one minute but stays in
inverter input range, UPS will work in AC inverting mode automatically.
Note: On ECO mode, when the UPS switches to Inverter mode (including Line mode and BAT mode) from
ECO mode, 15ms interrupt probably be happened.
5.5 Fault mode
LED indications on front panel in Fault mode are as following: warning red LED is on and LCD display fault
code and related icon.
Fault mode (LCD interface on which the fault code display)
When UPS has faulted. The warning LED is on and the buzzer beeps. UPS will turn to fault mode. UPS cuts
off the output and LCD display fault codes. At the moment, you can press the mute key to make the buzzer
stop beeping temporarily to wait for maintenance. You can also press the OFF key to shut down the UPS
when confirmed that there is no serious fault.
6. The warning code list of the LED light and display panel
Appendix 1: The table of the fault code
Fault code Fault type Bypass output Note
0、1、2、3、4
Bus high Yes
5、6、7、8、9
Bus low Yes
10、11、12、13、14
Bus unbalance Yes
15、16、17、18、19
Bus soft start fail Yes
20、21、22、23、24
Inverter soft start fail Yes
25、26、27、28、29
Inverter high Yes
30、31、32、33、34
Inverter low Yes
35、36、37、38、39
Bus discharge fail Yes
40、41、42、43、44
Over heat Yes
45、46、47、48、49
OP(inverter) shorted No
50、51、52、53、54
Overload Yes
55、56、57、58、59
Negative output power Yes