TROUBLESHOOTING GUIDE
PROBLEM |
| CAUSE |
| SOLUTION |
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UPS fails to start |
| UPS is short circuited or |
| Ensure UPS is off. Disconnect all loads |
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when on button is |
| overloaded |
| and ensure nothing is lodged in output |
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pressed |
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| sockets. Ensure loads are not defective |
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| or shorted internally. |
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| Internal fuse is blown, |
| Do not attempt to open or service the |
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|
| indicating internal fault |
| UPS. Contact your dealer or LTS. |
|
Battery indicator is |
| UPS not plugged in |
| UPS is operating from battery mode, |
|
illuminated |
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| make certain UPS is securely plugged |
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| into the wall socket |
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| UPS input protection has |
| UPS is operating from battery mode. |
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| opened |
| Save data and close applications. |
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| Replace UPS input fuse or reset input |
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| breaker, then restart UPS. |
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| Utility voltage out of UPS |
| UPS is operating from battery mode. |
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| input range. |
| Save data and close applications. |
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| Ensure utility supply voltage is within |
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| acceptable limits for UPS. |
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UPS has reduced |
| Batteries not fully charged |
| Keep UPS plugged in continuously at |
|
battery time |
|
|
| least 24 hours to recharge batteries |
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| UPS is overloaded |
| Check load level display and reduce load |
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| level |
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| Batteries may not be able to |
| Replace batteries. Contact your dealer |
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| hold a full charge due to age |
| or LTS for replacement battery kit |
|
Fault and Bypass |
| UPS overloaded or load |
| Check load level display and remove |
|
indicators and all load |
| equipment is faulty |
|
| |
level LEDs are |
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|
| VA and reduce number of loads |
|
illuminated |
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| connected to UPS. Check load |
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| equipment for faults. |
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Fault and Bypass |
| UPS internal fan has a |
| Ensure UPS is not overloaded, |
|
indicators and |
| problem or UPS shutdown |
| ventilation openings not blocked, or room |
|
diagnostic LED A are |
| due to temperature condition. |
| ambient temperature not excessive. |
|
illuminated |
| Load is on bypass power |
| Wait 30 minutes to allow UPS to cool, |
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|
|
| then restart UPS. IF it does not restart, |
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| contact your dealer or LTS. |
|
Fault and Bypass |
| UPS internal DC bus |
| UPS requires service. Contact your |
|
indicators and |
| overvoltage |
| dealer or LTS. |
|
diagnostic LED B are |
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illuminated |
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Fault and Bypass |
| UPS power control fault. |
| UPS requires service. Contact your |
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indicators and |
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| dealer or LTS. |
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diagnostic LED C are |
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illuminated |
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Fault and Bypass |
| UPS PFC fault. |
| UPS requires service. Contact your |
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indicators and |
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| dealer or LTS. |
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diagnostic LED D are |
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illuminated |
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Fault and Bypass |
| UPS inverter fault. |
| UPS requires service. Contact your |
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indicators and |
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| dealer or LTS. |
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diagnostic LED E are |
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illuminated |
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Fault and Bypass |
| UPS failed the battery test. |
| Replace batteries. Contact your dealer |
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indicators and |
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|
| or LTS. |
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diagnostic LED A & C |
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are illuminated |
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Fault and Bypass |
| UPS shutdown due to a |
| Your UPS has received a signal or |
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indicators and |
| command from the |
| command from the attached computer. If |
|
diagnostic LED C & E |
| communications port(s) |
| this was inadvertent, ensure the |
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are illuminated |
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| communication cable used is correct for |
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| your system. For assistance, contact |
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| your dealer or LTS. |
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22
DISCONTINUED
PRODUCT