Xantrex Technology PH1800 manual If Utility Power is Available, Problem, Probable Cause, Solution

If Utility Power is Available

If Utility Power is Available

The following fault conditions may arise when utility power is available.

Table 3-3Possible Problems if Utility Power is Available

Problem	Probable Cause	Solution
Display is OFF, AC is	Inverter is turned OFF.	AC output is always available when
available on both hardwire		AC input is available. Under this
and unit AC socket		condition, the inverter will not back
		up the power when utility power is
		OFF.
Display is OFF, AC is not	Main AC Panel or AC generator	Check utility or generator output
available on both hardwire	input is beyond the operating range of	voltage.
and unit AC socket	the unit (103 to 132 Vac).
Display is ON, AC is not	The 15A input circuit breaker on the	Reset the 15 A input circuit breaker.
available on both hardwire	Main AC Panel or AC generator is
and unit AC socket	tripped or turned OFF.	Reset the 15A supplemental protector
	The 15 A circuit breaker on AC
		near the four AC outlets on the front
	Distribution Panel and 15 A	panel and reset the 15A circuit
	supplementary protector near the four	breaker on the AC Distribution Panel
	AC outlets on the front panel have
	tripped.
Display is ON, AC is	15 A supplementary protector on the	Press the reset button to reset the
available on hardwire	front panel has tripped.	circuit breaker.
output but not on unit
AC socket
Bypass LED is flashing	During the first 20 seconds of transfer	None.
	from inverter to Bypass Mode, the
	inverter continuous to run and the
	Bypass LED flashes. This provides
	time for the utility to get steady
	before it switches over. During the 20
	seconds delay time, the display
	feature is frozen.

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