Minuteman UPS MCP 1000, MCP 2000i Troubleshooting Chart, Symtom Possible Cause What To Do

TROUBLESHOOTING CHART

Symtom	Possible Cause	What To Do
UPS not on	Power switch is in Off	Press On button.
	position.	Check utility power.
	No incoming utility.
On Battery LED is	Input AC breaker is tripped.	Reset circuit breaker.
illuminated even though	No incoming utility.	Check input power connection.
there is normal AC
present
Fault LED is illuminated	UPS has detected an internal	Turn UPS off, then on again. If Fault
	fault.	LED remains on contact Minuteman
		Technical Support.
UPS does not provide	The batteries may be weak or	Charge the batteries for 10 hours and
expected backup time	at the end of useful service	retest. If the backup time is still less
	life.	than expected, the batteries may need
	Charger failure.	to be replaced, even though the
		Battery Low LED is not illuminated.
Overload LED is	Connected loads exceed UPS	Remove excess load.
illuminated	rating.
Battery Low LED is	Weak or bad batteries, or bad	Check the battery connection and/or
illuminated	battery connection.	replace the batteries. Connect
	Remaining battery power	additional battery pack if available.
	supply is low.
Communication does	Incorrect cabling.	Refer to communication interface of
not work properly		this manual.

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