| Troubleshooting the PowerMind (PML) Series UPS |
The Trouble Shooting Chart covers most of the difficulties that you may encounter under normal working conditions. If the UPS fails to operate properly, please review the following checks before calling the repair center.
1. Is the UPS plugged into a correctly working outlet?
2. Is the line voltage within the rating specified?
3. Has the fuse on the back panel on model PML600, PML600/2, PML900, PML1250 blown? Has the circuit protector tripped on the PML900/2, PML1250/2, PML1650, PML1650/2, PML2000 or PML2000/2?
|
| Symptom |
Possible Cause |
What to do |
| UPS can not turn on and there is no alarm |
UPS rear panel main switch in off position Fuse open
No incoming utility line or abnormal input frequency
|
Turn on switch Replace fuse Check input power and wall socket |
| UPS can not turn on and alarm sounds continuously |
Too low or high input frequency Too low or high input line voltage
| Test input frequency Check input line voltage
|
| Battery mode light is on when incoming line is thought to be normal |
No incoming line, very low or very high line voltage Fuse open or circuit protector tripped |
Check wall socket and test input line voltage Replace fuse or reset circuit protector |
| Fault light is on and alarm sounds continuously |
UPS failure |
Call for service |
| Backup time is less than rated |
Battery is not fully charged
Dead battery charger failure |
Recharge the battery for at least 6 hours. Re-test the backup time. If problem remains, call for service. |
| Battery Mode and Battery Low/Weak lights are on and alarm sounds periodically |
UPS is in battery mode when input line fails
Battery is near end of discharge |
Check input power and wall socket |
| Overload light is on
and alarm sounds continuously |
>Weak battery |
Recharge battery for
4 hours and press the test button again, if the light keeps on flashing, call for service. |
