Always
O
n UPS Systems
M1201_Din_Rail_AC-DC_600VA_Manual V1.6 2012-06-12.doc
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TROUBLESHOOTING
Please follow the guidelines below for common problems:
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Check UPS input plug and wiring.
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Check UPS input voltage.
Please prepare the information as follows for service personnel:
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UPS model number and serial number
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Description of problem(s) in detail.
General Problems
Problems Possible
causes
Solution
UPS has no reaction
while AC power is
connected
Breaker on side panel open
No AC input
UPS fault
Battery failure
Reset breaker
Check AC power
Call for service
Call service center to replace batteries
UPS no reaction while
AC power is connected,
yet starts after pushing
power on/off switch
Breaker on side panel open
No AC input
UPS AC detecting circuit fail
Switch breaker
Check AC power
Call for service
UPS goes into back-up
mode while connected to
AC power
Utility voltage or frequency abnormal
UPS AC detecting circuit failure
Check AC power
Call for service
Battery can not provide
normal back-up power in
the event of a blackout
Battery deteriorated
Batteries not fully charged
Battery charger damaged
Charge batteries and reset
If that doesn’t work call for service
After AC connected to
UPS, alarm sounds short
and fast beeps and UPS
shuts down
Abnormal utility power
Check input power
