USER MANUAL - OPTIMA UPS 6K/ 10K (ENGLISH)
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20150610 Tower-Rack 6K-10K ISOTX
- 38
TROUBLESHOOTING
PROBLEM DESCRIPTION
PROBABLE ROOT CAUSE
SUGGESTED ACTION
* LCD does not show input voltage value
* AC input failure alarm active
(1 beep / 4s) however AC input source is OK
Input power cord is not connected
Check input power cord connection.
Input power cord is connected into UPS
outlet.
Check input power cord connection.
UPS cannot be powered on even AC input is OK.
Beep alarm is active (1 beep/s) & LCD shows:
EPO function is active.
Re-establish emergency power off
switch and set UPS in normal mode.
UPS cannot be powered on even AC input is OK.
ON push button is not been selected
properly
Push ON button during 2 seconds or
longer
1 beep / s alarm is active and LCD shows:
Internal or external batteries are not
properly connected
Check battery connection.
* Code
27
* Active:
* Continuous beep
Very high voltage at batteries or charger
failure
Batteries and charger must be
inspected by qualified personnel
* Code
28
* Active:
* Continuous beep
Very low voltage at batteries or charger
failure
Batteries and charger must be
inspected by qualified personnel
* Intermittent:
+
* 2 beeps per second.
UPS overloaded
Disconnect devices from UPS outlets
until solving overload
* Intermittent:
+
* 2 beeps per second.
* By-Pass activated
UPS overloaded. UPS has changed to
BYPASS mode to avoid internal
damage.
Disconnect devices from UPS outlets
until solving overload
After repetitive small overloads, UPS
has changed to BYPASS mode.
Disconnect devices from UPS until
solving overload. Then power off UPS
and re-star it.
* Code
43
* Active:
* Continuous beep
UPS has been automatically powered
off because overload.
Disconnect devices from UPS outlets
until solving overload. Then power
ON.
* Active:
* Continuous beep
UPS has been automatically powered
off because short circuit detected at
output.
Check short circuit problem in
devices connected to UPS
* Intermittent: +
EP
* 1 beep / s
Parallel communication lost.
Check parallel cables and PAR 00X
text on each LCD. If problem is solved
reset alarm with UP and DOWN
simultaneous key selection.
* Any of the error codes activated
Probable internal UPS failure.
Contact service center.
