Minuteman UPS - Troubleshoot Pro Series

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Troubleshooting the Continuous Power (CP) Series UPS

The Trouble Shooting Chart covers most of the difficulties that you may encounter under normal working conditions. If the UPS fails to operate properly, please review the following checks before calling the repair center.

Is the UPS plugged into a correctly working outlet?
Is the line voltage within the rating specified?
Has the fuse on the back panel on model CP500 blown?
Has the circuit protector on the back panel of the model CP1K or CP2K/2 tripped?
Has the circuit breaker on the back panel of the CP3K/2 tripped?

Symptom	Possible Cause	What to do
No light, no alarm (UPS not on)	Front panel switch in off position Rear panel fuse blown or circuit protector trip No incoming utility Breaker is off	Turn on switch Replace fuse or reset protector Check input power Check the breaker ON/OFF
No Line light, alarm beeps every few seconds	Breaker is off No incoming utility Fuse blown or protector trip	Check the breaker ON/OFF Check the input power Replace fuse or reset protector. If problem remains call for service
Fault LED lights, alarm beeps continuously	UPS failure	Call for service
Backup time is less than rating	Battery is not fully charged. Dead battery Charger failure	Recharge the battery for at least 6 hours. Re-test the backup time. If problem remains, call for service.
Load Level LED's show over 100%	Overload	Remove the least critical load
Buzzer beat twice per second	Overload	Remove the least critical load

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