Always “On” UPS Systems Inc.
Troubleshooting
Please follow the guidelines below for solutions to common problems:
Check UPS input plug and wiring.
Check UPS input voltage.
Please prepare the information as follows for service personnel:
UPS model number and serial number
Description of problem(s) in detail.
General Problems
Problems | Possible causes | |
UPS has no reaction | Fuse/Breaker at back panel open | |
No AC input | ||
while AC power is | ||
UPS fault | ||
connected | ||
Battery failure | ||
| ||
UPS no reaction while | Breaker at back panel blown | |
AC power is connected, | ||
yet starts after pushing | No AC input | |
UPS AC detecting circuit fail | ||
power on/off switch | ||
| ||
UPS goes into | Utility voltage or frequency | |
mode while connected to | abnormal | |
AC power | UPS AC detecting circuit failure | |
| Inverter fault. | |
| Over temperature | |
Fault LED lit | Battery over voltage. | |
| DC bus fault. | |
| Overload fault. | |
Battery can not provide | Battery deteriorated | |
normal | Batteries not fully charged | |
the event of a blackout | Battery charger damaged | |
After AC connected to |
| |
UPS, alarm sounds short | Abnormal utility power | |
and fast beeps and UPS |
| |
shuts down |
|
Solution
Replace Fuse/Switch breaker on Check AC power
Call for service
Call service center to replace batteries
Switch breaker
Check AC power
Call for service
Check AC power
Call for service
Call for service
Check load situation
Charge batteries and reset
If that doesn’t work call for service
Check input power
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