Emerson GXT3 230V user manual Troubleshooting table, Problem Cause Solution

Troubleshooting

11.2Troubleshooting

In the event of an issue with the UPS, refer to Table 6 to determine the cause and solution. If the fault persists, contact Emerson Channel Support.

Table 6 Troubleshooting table

Problem	Cause	Solution
UPS fails to start when the	UPS is short-circuited or	Ensure UPS is Off. Disconnect all loads and ensure
On/Alarm Silence/Manual		nothing is lodged in output receptacles. Ensure loads
	overloaded
Battery Test button is pressed		are not defective or shorted internally.
	UPS is not plugged in	UPS is operating from battery mode. Ensure UPS is
		securely plugged into the wall receptacle.
	UPS input protection fuse has	UPS is operating from battery mode. Save data and
		close applications. Replace UPS input fuse, then restart
Battery indicator is illuminated	blown/opened
		UPS.
		UPS is operating from battery mode. Save data and
	Mains power is out of tolerance	close applications. Ensure mains supply voltage is
		within acceptable limits for UPS.
	Batteries are not fully charged	Keep UPS plugged in continuously at least 24 hours to
		recharge batteries.
UPS has reduced battery	UPS is overloaded	Check load level indicator and reduce the load on the
		UPS.
backup time
	Batteries may not be able to	Replace batteries. Contact your local dealer, Emerson
		representative or Emerson Channel Support for
	hold a full charge due to age
		replacement battery kit.
Fault and Bypass indicators		Check load level indicator and remove non-essential
and all LED segments of	UPS is overloaded or load is
		loads. Recalculate the load and reduce number of loads
battery level indicator are	faulty
		connected to UPS. Check load for faults.
illuminated
		Ensure UPS is not overloaded, ventilation holes are not
Fault and Bypass indicators	UPS has been shut down due	blocked and room ambient temperature is not
		excessive. Wait 30 minutes to allow UPS to cool, then
and diagnostic A indicator are	to temperature condition; load
		restart UPS. If UPS cannot restart, contact your local
illuminated	is on bypass power
		dealer, Emerson representative or Emerson Channel
		Support.
Fault and Bypass indicators	UPS internal DC bus	UPS requires service. Contact your local dealer,
and diagnostic B indicator are
	overvoltage	Emerson representative or Emerson Channel Support.
illuminated
Fault and Bypass indicators		UPS requires service. Contact your local dealer,
and diagnostic C indicator are	UPS DC/DC fault
		Emerson representative or Emerson Channel Support.
illuminated
Fault indicator and diagnostic	UPS PFC (Power Factor	UPS requires service. Contact your local dealer,
D indicator are illuminated	Correction Circuit) fault	Emerson representative or Emerson Channel Support.
Fault and Bypass indicators		UPS requires service. Contact your local dealer,
and diagnostic E indicator are	UPS inverter fault
		Emerson representative or Emerson Channel Support.
illuminated
Fault indicator and diagnostic		Replace batteries. Contact your local dealer, Emerson
A and C indicators are	UPS failed the battery test
		representative or Emerson Channel Support.
illuminated
		Your UPS has received a signal or command from the
Fault and Bypass indicators	UPS has been shut down by a	attached computer. If this was inadvertent, ensure the
and diagnostic C and E	command from the	communication cable used is correct for your system.
indicators are illuminated	communications port(s)	For assistance, contact your local dealer, Emerson
		representative or Emerson Channel Support.

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