VS375C/VS575C | 15 |
5. TROUBLESHOOTING
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
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| Corrective Action |
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| UPS | front | panel | on/off |
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| Press | the On/Off switch for | ||||||||||||
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| switch | has | not | been |
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| two seconds |
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| Load | less | than 20W at |
| Normal condition, “No load | ||||||||||
UPS can not | turn | on |
| shutdown | function” | is | |||||||||||||||
battery mode |
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and has no alarm. |
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| Battery | voltage | less | than |
| Recharge the UPS for at | |||||||||
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| 10V |
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| least 6 hours |
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| PCB failure |
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| Contact | dealer | or OPTI- | ||||||
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| Very low or very high line |
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Battery LED (amber) | voltage. |
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is lit and UPS beeps | UPS | input | power cord is |
| Plug in input power cord | ||||||||||||||||
every 4 seconds |
| not plugged in |
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| AC Fuse burned out |
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| Replace the AC fuse |
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The |
| UPS | Overload |
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LED (red) is always lit |
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| Remove | the | least critical | ||||||||||
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| is | a | UPS is overloaded |
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continuous | sounding |
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alarm |
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The |
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| Battery voltage | too low |
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Weak | LED | (red) | is |
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Dead battery |
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| reset |
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always lit |
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| Plug the UPS into an AC | ||||||
Backup time is less | Battery is not fully charged |
| outlet and | recharge | the | ||||||||||||||||
| battery | for | 6 | hours. | If | ||||||||||||||||
than the rating |
| or battery is dead |
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| problem | remains, replace | ||||||||||||||||
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| the battery |
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UPS |
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functioning | normally | Computer input power cord |
| Check the computer input | |||||||||||||||||
but |
| the | computer | is loose or not connected |
| power cord |
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won’t turn on |
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Software |
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| Wrong interface cable | Purchase the correct one | |||||||||||||||
communication | not | ||||||||||||||||||||
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working |
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