Troubleshooting reference – Xantrex Technology 1200 User Manual
Page 54
 
Troubleshooting Reference
5–3
Troubleshooting Reference
WARNING: Electrical Shock and Burn Hazard
Do not disassemble the XPower Plus. It does not contain any user-serviceable parts. 
Attempting to service the unit yourself could result in an electrical shock or burn.
Table 5-1
Troubleshooting Reference
Problem
Possible Cause
Solution
Low output voltage (96 Vac–
104 Vac)
You are using a voltmeter that 
cannot accurately read the 
RMS voltage of a modified 
sine wave.
Use a true RMS reading voltmeter 
such as the Fluke 87.
Low output voltage and the
OUTPUT POWER 
INDICATOR 
is in the red
area.
Low input voltage and the 
load is close to maximum 
allowable power.
Check the connections and cable to see 
if the battery is fully charged. 
Recharge the battery if it is low.
Reduce the load.
No output voltage and the
INPUT VOLTAGE DISPLAY
indicates below 10 V. Fault 
LED is on.
Low input voltage
Recharge the battery; check the 
connections and cable.
No output voltage; no input 
voltage indication.
The inverter is off.
No power to the inverter.
Inverter fuse open.
The inverter could have been 
connected with reverse DC 
input polarity.
Turn the inverter on.
Check the wiring to the inverter.
Return the unit. Information for 
returning the inverter is provided in 
“Return Material Authorization 
Policy” on page D–3
.
The inverter has probably been 
damaged. Have it repaired. Damage 
caused by reverse polarity is not 
covered by the warranty. Information 
for returning the inverter is provided in 
“Return Material Authorization 
Policy” on page D–3
.