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Operating
Manual
LP 31
/ 8-10-15-20
kVA
8. TROUBLESHOOTING
Whenever a malfunction occurs, first check external factors (e.g. connections, temperature,
humidity or load) to determine whether the problem is caused by the unit itself or by its
environment.
Always check these external factors before concluding that your
LP 31
UPS is faulty.
The front screen will indicate the problem and solution (if the problem is due to environmental
circumstances).
If the solution is not shown on the screen, please contact your dealer.
During the self-test, performed immediately after start-up, the UPS may detect a system failure.
In this case (one of) the following messages can be displayed:
SELFTEST FAILURE
PCB POWER SUPPLY
One or more voltages of the internal power supply is (are)
outside tolerance.
Please contact your dealer.
SELFTEST FAILURE
AC ON OUTPUT
An external AC voltage (not the UPSs output voltage) was
detected on the output terminals.
Please contact your dealer.
SELFTEST FAILURE
PCB CONNECTORS
One or more of the connectors inside the unit has a defect or
is not placed properly.
Please contact your dealer.
SELFTEST FAILURE
IC CHARGE
A hardware error occurred during start-up of the input
converter. Please contact your dealer.
SELFTEST FAILURE
Comm. FAILURE
Malfunction of the communication circuitry.
Please contact your dealer.
SELFTEST FAILURE
TEMP TOO HIGH
The temperature of (one of) the components is (still) too high.
See chapter 4.3.2.
SELFTEST FAILURE
FATAL ERROR
During start-up from mains, a hardware error occurred.
Please contact your dealer.
