PS500B/PS800B | 15 |
5. TROUBLESHOOTING
The TROUBLESHOOTING CHART on the next page covers most of the difficulties that you may encounter under normal working conditions. If the UPS fails to operate properly, please review the following steps before calling the repair center:
1.Is the UPS plugged into a proper working outlet?
2.Is the line voltage within the rating specified?
3.Does the circuit breaker on the rear panel need to be reset?
5.1Troubleshooting Chart
Problem | Possible Cause | Corrective Action |
UPS does not power up | On/Off button is not | Press the On/Off button |
and has no audible | pressed long enough. | until UPS turns on |
alarm |
|
|
| No incoming line or very | Check the wall socket and |
| low or very high line | test the input line voltage. |
| voltage. |
|
| UPS input power cord is | Plug in input power cord. |
| not plugged in. |
|
| Rear panel circuit breaker | Reduce the load and reset |
| is tripped. | the circuit breaker. |
UPS over load LED light | UPS is overloaded. | Remove the least critical |
& continuous audible |
| devices from the load. |
alarm. |
|
|
Low Replace Battery | Battery voltage is too low, | Recharge the battery for |
LED is light | or the battery is dead. | more than 4 hours and |
|
| reset the UPS. If the LED |
|
| is still lit, replace battery. |
Site Wiring Fault LED is | Site wiring problem | Call an electrician to check |
on. |
| your wiring. |
Battery is not fully charged | Recharge the battery for 6 | |
the rating. | or the battery is dead. | hours and retest the |
|
| backup time. |
UPS is normal but the | Computer input power | Reconnect computer input |
computer won’t turn on. | cord is loose or not | power cord. |
| connected. |
|
Software communication | Wrong interface cable. | Purchase the correct one |
not working |
| from your distributor. |
| The serial port of the | Check to see that the |
| computer has not been | serial port is enabled in the |
| configured properly. | CMOS settings. Also |
|
| check for IRQ conflicts and |
|
| make sure the settings |
|
| match those of OPTI- |
|
| SAFE Xtreme |
| The I/O card is defective | Replace I/O card. |
