Tescom CL115D Series - Fault Codes

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Fault codes
The following table shows fault codes and messages of the UPS. If any one of these fault codes is shown at
the second line of LCD panel, the UPS operation has already been blocked. To restart the UPS, from
SERVICE menu go to
<ENT> FAULT RESET menu item and press ENTER button. If UPS restarts and alarm is cleared, it means that
the fault is temporary and now there is no problem. But, on the other hand, if UPS gives the same fault
message again, refer to your local service company.
Message
code status
F1 CHARGER FAULT
134 UPS system blocked load on bypass
F2 4
-
OVERTEMP.
135 UPS system blocked load on bypass
F3 BATT AUT END
136 UPS stop, load shutdown ,restart at mains OK
F4 REPO STOP
137 UPS system blocked load shutdown
F5
+DC BUS TOL
138 UPS system blocked load on bypass
F6
–
DC BUS TOL
139 UPS system blocked load on bypass
F7 NO POWER
140 UPS system blocked load shutdown restarts at mains OK
F8 PFC TIMEOUT
141 UPS system blocked load on bypass
F9 DC BUS ????
142 UPS system blocked load on bypass
F10 BOOSTER SOFT
143 UPS system blocked load shutdown
F11 DC BUS ERROR
144 UPS system blocked load on bypass
F12 SHORT CIRC.
145 UPS system blocked load shutdown
F13 WAVEFORM
146 UPS system blocked load on bypass
F14 BATT.SAMPLE?
147 UPS system blocked load on bypass
F15 4
-
INV
FAIL
148 UPS system blocked load on bypass
F16 4
-
OVERCURR.
149 UPS system blocked load on bypass
F17 MIS
-
FUNCTION
150 UPS system blocked load on bypass
F18 ALT
.PROTECT.
151 UPS system blocked load on bypass
F1 CHARGER FAULT
Charger system failed
F2 4-OVERTEMP.
A11 OVERTEMP. Alarm has occurred 4 times within 60 minutes. Possible cooling problem of the UPS.
F3 BATT AUT END
During line failure , batteries are discharged fully and already no power on the UPS. After mains is restored the
RESTART:ON/OFF option determines whether the UPS is restarted automatically or restarted by the user
manually.
F4 REPO STOP
External remote emergency power off signal applied to UPS , currently system shutdown.
F5 +DC BUS TOL
Positive DC bus voltage is out of tolerance alarm has occurred 4 times within 60 last minutes.
F6 -DC BUS TOL
Negative DC bus voltage is out of tolerance alarm has occurred 4 times within 60 last minutes.
F7 NO POWER
UPS started during mains failure but battery voltage is low and the UPS can not start.
F8 PFC TIMEOUT
UPS tried to start PFC system but start is delayed or not started.