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Troubleshooting
975-0125-01-01 4–9
W9 Battery temp sensor
not detected. Check
connections.
Automatic Battery Temperature
Sensor Not Present
Install a battery temperature
sensor (BTS). This warning
will continue to display as long
as no BTS is connected.
W10 Battery temp sensor
failure.
Automatic Battery Temperature
Sensor Shorted
Replace battery temperature
sensor.
W11 Batt voltage too high.
Check DC wiring to
inverter/charger.
Automatic DC Over Voltage
Warning
Turn off or check additional
charging sources to batteries.
Check battery cables.
W12 Battery voltage is
getting low.
Recharge battery.
Automatic DC Under Voltage
Warning
Recharge batteries and check
battery cables from inverter to
batteries for loose connections.
W13 Line 1 AC voltage
too high. System may
shut down
Automatic AC Over Voltage
Warning (AC Line 1
input)
Check AC input voltage.
Check high AC input voltage
setting.
W14 Line 1 AC voltage
too low. System may
shut down.
Automatic AC Under Voltage
Warning (AC Line 1
input)
Check AC input voltage.
Check low AC input voltage
setting.
W15 Line 2 AC voltage
too high. System may
shut down.
Automatic AC Over Voltage
Warning (AC Line 2
input)
Not applicable to RS2000.
W16 Line 2 AC voltage
too low. System may
shut down.
Automatic AC Under Voltage
Warning (AC Line 2
input)
Not applicable to RS2000.
W18 Cannot Equalize Manual Cannot equalize Wrong battery type. Change
battery type only if the battery
type setting is not the same as
actual battery type. Cannot
equalize a gel or AGM battery.
W19 Equalization
terminated
abnormally
Manual Equalization
terminated abnormally
Investigate cause of problem.
W500 Lost network
connection
Automatic Lost network
connection
Check network cables or
terminators.
Table 4-3
Warning Messages
Warning
Number Message
Warning
Type Cause Solution