Xantrex Technology 1200 User Manual
Page 55
 
Troubleshooting
5–4
No output voltage and the
INPUT VOLTAGE DISPLAY
indicates above 15 V. Fault 
LED is on.
High input voltage
Make sure the XPower Plus is 
connected to a 12 V battery.
Check the voltage regulation of the 
charging system.
Low battery alarm stays on 
and the voltage indicator is 
below 10.7 V.
Poor DC wiring; poor battery 
condition
Use proper cable size and lengths and 
make solid connections.
Charge the battery.
Install a new battery.
No output voltage.
Fault LED is on.
Thermal shutdown
Unit overload
Output is short circuited.
Allow the unit to cool off. Reduce the 
load if continuous operation is 
required.
Improve ventilation. Make sure the 
inverter’s ventilation openings are not 
obstructed. 
Reduce the ambient temperature.
Reduce the load.
Remove the short circuit.
Table 5-1
Troubleshooting Reference
Problem
Possible Cause
Solution