PROBLEM AND/OR POSSIBLE |
| SOLUTION | |
CAUSE |
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THE OVERLOAD LED IS ILLUMINATED AND THE UPS EMITS A SUSTAINED ALARM TONE | |||
The UPS is overloaded. The | The connected equipment exceeds the specified “maximum load.” | ||
connected equipment is draw- | The alarm remains on until the overload is removed. Disconnect nonessen- | ||
ing more VA or more Watts | |||
tial equipment from the UPS to eliminate the overload. | |||
than the UPS can sustain. | |||
The UPS continues to supply power as long as it is online and the circuit | |||
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| breaker does not trip; the UPS will not provide power from batteries in the | |
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| event of a utility voltage interruption. | |
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| If a continuous overload occurs while the UPS is on battery, the unit turns | |
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| off output in order to protect the UPS from possible damage. | |
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| (See Maximum Power and VA Specifications) | |
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The condition persists for a few | Equipment such as laser printers draw a great amount of power in short | ||
seconds, stops and then repeats | bursts periodically. For instance, laser printers commonly draw nearly | ||
approximately every minute. | 1000 W of power (varies among different printers) for a few seconds, the | ||
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| draw will then stop, only to resume seconds later. The UPS is then sub- | |
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| jected to periodic high power draws, and will be briefly overloaded. If the | |
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| UPS must power a laser printer, be sure the UPS can meet the maximum | |
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| draw of the laser printer. | |
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THE REPLACE BATTERY LED IS ILLUMINATED | |||
Replace battery LED flashes | Check that the battery connectors are fully engaged. | ||
and short beep is emitted every |
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two seconds to indicate the |
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battery is disconnected. |
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Weak battery. | Allow the battery to recharge for 24 hours. Then, perform a | ||
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| problem persists after recharging, replace the battery. | |
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Failure of a battery | The UPS emits short beeps for one minute and the replace battery LED | ||
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| illuminates. The UPS repeats the alarm every five hours. Perform the self- | |
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| test procedure after the battery has charged for 24 hours to confirm the | |
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| replace battery condition. The alarm stops and the LED clears if the battery | |
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| passes the | |
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THE SITE WIRING FAULT LED ON THE REAR PANEL IS ILLUMINATED (120 V ONLY) | |||
The UPS is plugged into an | Wiring faults detected include missing ground, | ||
improperly wired utility power | and overloaded neutral circuit. | ||
outlet. | Contact a qualified electrician to correct the building wiring. | ||
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THE INPUT CIRCUIT BREAKER HAS TRIPPED (230 V MODELS AND 1500 VA, 120 V MODELS ONLY) | |||
The circuit breaker switches | Reduce the load on the UPS by unplugging equipment. Reset the breaker. | ||
off. |
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THE AVR LED IS ILLUMINATED |
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Your system is experiencing | Have qualified service personnel check your facility for electrical prob- | ||
excessive periods of low or | lems. If the problem continues, contact the utility company for further as- | ||
high voltage. | sistance. | ||
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