Fault Led Lights Up And No Output - Ablerex 3 MS series User Manual

4.2.

Fault LED Lights up and No Output

4.2.1. Troubleshooting
Check Items
Output Short Circuit
Overload(>120%)
Battery voltage is abnormal
INVERTER Voltage ERROR
The Fan on the rear panel is out of
order
FIG. 4.2
Trouble-shooting
Check if the output end of the UPS is in short
circuit.
Reduce the output load.
MS1K/MS1KR: 1000VA/700W
1. If the battery voltage is under 28.8V, replace the batteries¡C
2. Remove the battery, check the charge voltage. If the voltage
is over 43V, the charger circuit is out of order. Refer to fig4.1,
please check U14¡BU10¡BVR1 and other device nearby.
Refer to fig.4-4, Check U7¡BU8¡BQ13¡BQ14 ¡C
1. Check to see if the connection to the fan is
Properly done.
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