MGE UPS Systems 3.5 to 21 kVA N+1 - Manual (Page 45)

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Owner’s Manual
3.11 Troubleshooting Guide
After having thoroughly reexamined the installation and setup of the system, and still found it un-operational, user
can follow Table 3-2 to identify a problem, its cause, and recommendations for fixing it.
Table 3-2: Troubleshooting table.
Problem Possible Cause Possible Solution
Display panel not illuminated No power to system Check AC & DC power sources.
No output voltage SW1 not ON Turn SW1 ON
System starts, then shuts Overload, or shorted Remove some of the load and
down almost immediately output. restart the inverter.
Power module LED turn red Module faulted Reset by recycling circuit breaker
Module temp. indicator on Module fan failure Replace module or cooling fan
Maintenance Adjustment and Troubleshooting