Minuteman UPS PRO-E user manual If the AC circuit breaker trips

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	Symptom	Possible Cause	What To Do
	UPS will not turn on	On/Off/Test button not	Press and release the On/Off/
		pushed	Test button to start UPS
	UPS operates in	Input AC circuit breaker is	Reset circuit breaker by
	battery mode only,	tripped	pressing the plunger back in.
	even though there is		If the AC circuit breaker trips
	normal AC present		after UPS starts up, reduce
			the load on the UPS
	Fault LED is	UPS has detected an	Call for service
	illuminated	internal fault
	Site Wiring Fault	Incorrect service wiring	Have a Qualified Electrician
	LED is illuminated		correct the service wiring
	The On-line/On-	The UPS is being	Disconnect the computer
	Battery LED is	controlled via its	cable from the UPS and press
	illuminated, but	communications port	the On button. If UPS works
	there is no output		normally, the software has
			control of the UPS
	UPS does not	The batteries may be weak	Charge the batteries for 8
	provide expected	or at the end of useful	hours and retest. If the runtime
	runtime	service life	is still less than expected, the
			batteries may need to be
			replaced, even though the
			Weak/Bad Battery LED is not
			illuminated
	Weak/Bad Battery	Weak/bad batteries or bad	Check battery connections,
	LED is illuminated	connections at the battery	charge the batteries for 8
			hours, replace the batteries
	UPS occasionally	Normal operation	The UPS is performing its
	emits a beep		intended function
	Overload LED is	The load has exceeded the	Check the specifications (see
	illuminated and a	UPS's capacity	section 8). Remove part of the
	constant alarm		load
	The On-Line LED is	The UPS is in either the	The UPS is performing its
	blinking and the au-	Boost mode or the Buck	intended function
	dible alarm is silent	mode

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