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Troubleshooting Reference
975-0054-01-01 4–3
Table 4-1
Troubleshooting Reference for the XS400
Problem Possible Cause Solution
No output voltage. No
indicator lights are
illuminated.
The On/Standby switch is in
Standby ( ) mode.
The S400 Remote Switch is
in Standby ( ) mode.
No input power to the
inverter.
DC fuse open (external)
Turn the On/Standby switch on the inverter
to On ( ).
Turn the On/Standby switch on the S400
Remote Switch to On ( ).
Check the DC wiring to the inverter for
loose connections, frayed wiring or an open
DC Disconnect.
Have a qualified service technician check
and replace the fuse.
No output voltage. Inverter
ON light is illuminated.
Supplemental Circuit
Protection button has tripped.
GFCI has tripped.
Disconnect all appliances to reduce the
overload. Check the AC wiring and reset
the Supplemental Circuit Protection button.
Clear the ground fault, and reset the GFCI
by pressing the Reset button on the GFCI.
No output voltage. Fault light
is illuminated.
The inverter may be
overloaded.
Battery voltage may be too
high.
Over temperature.
Disconnect all appliances connected to the
inverter, and reset the inverter by turning
the On/Standby switch on either the XS400
or S400 Remote Switch to Standby
()
and then to On ( ).
The inverter will restart if the battery
voltage drops below 14.5 volts DC.
Allow the inverter to cool down. The
inverter will restart automatically.