MGE UPS Systems EX 7RT - Manual (Page 55)

Installation and User Manual
Table 4-3: Troubleshooting requiring MGE after-sales support.
Symptom Indication Correction
LED and are on, Internal fault Call the after sales support department.
Bypass AC Source is present and transfer of load
and audible alarm is on. on bypass AC source
the alphanumeric display shows:
xxx FAULT
LED is on, and audible alarm Battery fault during the battery test. Call the after sales support department.
is on, the alphanumeric display
shows
BATTERY FAULT
LED is on, Static switch failure Call the after sales support department.
the alphanumeric display shows:
SHUTDOWN
STATIC SW FAILED
Audible alarm is on, Batteries may have exceeded Follow the battery replacement procedure
the alphanumeric display shows: their rated life period. Battery in section 4.5.
END OF WARRANTY capacity is severely reduced.
NOTE: To reset the alarm permanently, press both function buttons and for more than 3 seconds.
22 21
17
17
18 17
Maintenance 4 — 3 86-86000-00 A01