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PROBLEM
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POSSIBLE CAUSE
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ACTION TO TAKE
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| UPS will not turn on. |
- UPS power switch not ON.
- Computer power switch not ON.
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- Turn the relevant switch to ON position.
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| UPS beeper sounds even when AC power is available. |
- Line cord plug is loose.
- Front panel circuit breaker is tripped.
- Wall socket faulty.
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- Check fit of line cord plug.
- Unplug excessive loads and reset breaker (press button).
- Check wall socket with a table lamp.
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| UPS occasionally emits beep, computer equipment operates normally. |
- The UPS is briefly transferring your equipment to its alternate Power source due to utility voltage sages or spikes.
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- This operation is normal. The UPS is protecting your computer equipment from abnormal utility voltages.
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| UPS beeper sounds frequently but system operates normally. |
- AC power line is heavily loaded
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- Plug into another wall socket that is not affected.
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PROBLEM
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POSSIBLE CAUSE
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ACTION TO TAKE
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| UPS emits loud tone. Power I/O switch is on but computer equipment is not powered. |
- UPS has shut down due to severe overload.
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- Turn off UPS and unplug excessive loads. Laser printers will overload the UPS and should be plugged into a Quality surge suppressor. See the section covering Overloads. Once Overload is removed, reset the circuit breaker (press button).
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| UPS does not provide expected run time. Low battery warning is sounded prematurely. |
- Excessive loads connected at UPS's output receptacles.
- Battery is weak due to wear or recent operation during utility power outage.
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- Unplug excessive loads from UPS. Recheck computer system power requirements as described in installation instructions.
- The battery should be recharged by leaving the UPS plugged in for 12 hours. If UPS sounds low battery warning prematurely when re-tested, battery should be replaced.
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| UPS beeps continuously. Lamp within I/O power switch is illuminated. Utility is not failed. |
- Line cord plug is loose.
- Circuit breaker is tripped.
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- Check fit of line cord plug.
- Unplug excessive loads and reset circuit breaker (press button).
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| Low battery warning is shorter than 2 or 5 minutes. |
- Excessive loads connected at UPS's output receptacles.
- Battery capacity low due to consecutive utility failures.
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- Excessive loading may shorten run time to below 2 or 5 minutes low battery warning interval remove excessive loads.
- Consecutive utility failures may not allow time for the battery to recharge there by causing shortened run time.
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