Troubleshooting
5–2 975-0128-01-01
Troubleshooting Reference
WARNING: Electrical shock and burn hazard
Do not disassemble the inverter. It does not contain any user-serviceable
parts. Attempting to service the inverter yourself could result in an
electrical shock or burn.
Table 5-1
Troubleshooting Reference
#
Error/Warning
Code on Display Problem Possible Cause Solution
1 AL1: Flashing
Alarm: Beeping
Low DC input
terminal voltage.
Poor DC wiring
Poor battery condition
Use proper cable size and
lengths and make solid
connections.
Charge the battery.
Install a new battery.
2 AL2: Flashing
Alarm: Beeping
Inverter is close to
over-temperature
shutdown
Inverter ventilation
openings are obstructed.
Ambient temperature is
too high.
Load applied is above
the continuous operation
limit.
Improve ventilation. Make
sure the inverter’s ventilation
openings are not obstructed.
Reduce the ambient
temperature.
Reduce the load if continuous
operation is required.
3 E01: Flashing
Fault
LED: Flashing
Alarm: Beeping
Inverter is in
undervoltage
shutdown.
AL1 warning code is
ignored. (See possible
causes under error # “1”
in this table).
See solution under error # “1”
in this table.
4 E02: Flashing
Fault
LED: Flashing
Alarm: Beeping
Inverter is in
overvoltage
shutdown.
High input voltage Make sure the inverter is
connected to a 12 V battery.
Check the voltage regulation
of the charging system.
XPower3000.book Page 2 Wednesday, December 10, 2003 6:52 AM
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