Xantrex Technology PH1800 If Utility Power is NOT Available, Problem, Probable Cause, Solution

If Utility Power is NOT Available

If Utility Power is NOT Available

The following fault conditions may arise when utility power is not available.

Table 3-2Possible Problems if Utility Power is Not Available

Problem	Probable Cause	Solution
Low output voltage.	Voltmeter used cannot accurately	Use a true RMS voltmeter.
(96 Vac to 104 Vac)	read the RMS voltage of a
	modified sine wave.
Display is OFF, AC is not	The unit is OFF.	Turn the unit ON.
available on both		•Check battery box connection.
hardwired and units	The inverter has no output.
AC sockets.		•Check battery box fuses.
		•Check wind or solar connections.
	The unit might have been	•Check battery box fuses (all 10 of them)
	connected with reverse DC input	and check battery polarity.
	polarity.	•Correct the cabling if connected
		improperly.
		•Replace the fuses in the battery box.
		If the unit still does not start, it may be
		damaged. Damage caused by reverse
		polarity is not covered by the warranty.
AC is available but alarm	Low Voltage Warning	Charge battery immediately or unit will
beeps.	(error code E05)	be under voltage shutdown shortly.
	Over Load Warning	Load applied to unit is close to overload
		shutdown, reduce the load immediately or
	(error code E06)	overload or over temp may occur shortly.
		Check unit ventilation and reduce the load
	Over Temperature Warning	applied to the unit or unit will run into
		over temperature shutdown shortly.
	(error code E07)
Display is ON, AC is	15 A supplementary protector	Press reset button on the front panel to
available on hardwire but	has tripped.	reset the protector.
not on unit AC socket

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