Chapter 10 Service after Sales
Chapter 10 Service after Sales
10.1 Abnormal Fault Handling
If the UPS is abnormal without alarm indication, check according to Table
Table
No.1 | Fault description |
| Reason | Actions to be taken |
| Utility switch is put to |
| A. Input power is |
|
1 | “ON”, no display by LCD, |
| disconnected from system | Check the input voltage |
| no self test of system |
| B. Input under voltage |
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| |
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2 | UPS has no output power |
| Output power cables are not | Check the output cables |
| and no alarm |
| well connected |
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|
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3 | Abnormal sound and smell |
| UPS has internal fault | Contact the distributor |
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When the UPS is abnormal with visual/audible alarm, check the LCD display first and then process the fault according to
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