PS Audio 1500 MKII manual Troubleshooting

®Troubleshooting

Owner’s Reference PowerPack 1500 MKII

6.1 Troubleshooting

Abnormal Situation	Cause	Solution
UPS can not turn and	• Main on switch not pushed or	• Press and hold the Main on switch for
LED not lit	pushed less than 3 seconds.	more than 3 seconds.
	•Battery voltage is too low.	• Recharge the battery for at least 4 hours.
UPS always at battery	• Power cord loose.	• Re-plug the power cord firmly.
mode	• Input fuse blown.	• Remove load and replace fuse with the
	• Line voltage too high or two low.	same rating.
	• Line frequency over range.	• Check input voltage.
		• Check input frequency.
UPS is normal but the	• Computer input power cord is	• Reconnect computer input power cord.
computer won’t turn on.	loose or not connected.
Backup time is less than	• Battery is not fully charged or	• Recharge the battery for 6 hours and re
the rating	battery is dead.	test the backup time. If problem remains,
	• UPS is slightly overloaded.	call for service.
		• Remove the least critical load
Backup mode, the UPS	• UPS is in green power mode	• Connect to load.
automatically turns off	and UPS will automatically turn	• Disable green power mode.
after 2 minutes	off in 2 minutes.
AC fail, UPS automatic	• Battery is not fully charged or	• Recharge the battery for 6 hours and re-
turn off.	is dead.	test the backup time. If problem re
	• UPS is overloaded and shuts	mains, call for service
	down.	• Remove non-critical load and start the
		UPS again and recharge the battery for
		6 hours.
The UPS fault LED	• UPS is at full load	• Remove the non-critical loads.
flashes, LED6 is lit.
During AC fail, the UPS	• UPS is over loaded, UPS shuts	• Remove non-critical loads and start the
fault LED flashes, LED 6	down in 20 seconds in backup	UPS again.
is lit.	mode.

4826 Sterling Drive, Boulder, CO 80301	Troubleshooting 27
PH: 720.406.8946 service@psaudio.com www.psaudio.com

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