POWERVAR Security Plus UPS
50
Solution:
1)
Press and hold the SELECT button until the screen displays “Inverter Off: Yes?”
2)
Press SELECT button two more times until screen displays “Ground Fault: Disable?”
3)
Press OK
4)
Press the NORMAL/BYPASS button and wait 2 minutes (It is important to wait the 2
minutes).
5)
Press the NORMAL/BYPASS button again.
6)
Check to insure the LINE and INV LEDS are on.
4.6 Troubleshooting
4.6.1 Overview
In the event of UPS failure, first inspect the UPS and the area around it to determine if there
are any obvious reasons for malfunction. Check for external factors such as high temperature
or humidity. Check to make sure that the UPS ventilation slots and holes are not obstructed.
Carefully observe any messages that may appear in the display window on the front panel of
the UPS.
4.6.2 Troubleshooting Steps
Problem: Buzzer gives long buzzing, fault light is on, UPS is powered through bypass,
and inverter fails.
Possible cause 1: Output overload or short circuit results in UPS automatic shutdown
protection.
Solution: Locate and remove source of overload or short circuit
Possible cause 2: Driver or power transistor failure
Solution: Contact distributor or manufacturer
Possible cause 3: Master control board failure.
Solution: Contact distributor or manufacturer
Possible cause 4: UPS Over-temperature protection
Solution: Turn off all loads. Allow UPS to cool down and restart UPS according to routine start-
up instructions.
Only simple troubleshooting suggestions are provided here. If you
cannot arrive at a clear diagnosis of the problem using the
information here or if the information given here is not sufficient to
solve your problem, please contact your distributor or the
manufacturer for assistance and repair.
