42
®
8 Possible malfunctioning
Error Codes
When the Fault LED
1
2
is lit press the ON button
1
2
briefly to check the error code.
The error codes 1, 2, 4, 8, and 16 are represented by the four bar LEDs 25%, 50%, 75%, and 100%,
and the Overload LED
1
2
.
Each LED represents a number as shown in the figure below.
For example, if the 25%, 50%, and 100% bar LEDs are lit, the error code is therefore 8 + 2 + 1 = 11,
or Er11, which indicates that the UPS is over-temperature.
8
4
2
1
16
Code
Meaning
Er05
Battery weak or faulty
Er06
Output short-circuited
Er07
EPO mode
Er11
UPS over-temperature
Er12
Inverter overload
Er24
Utility low (< 160 V)
or battery disconnected
Er28
Bypass overload
