SRP SR3000TL - Grid Fault Alarm Codes; Alarm Code Descriptions and Repairs

2928
www.sunnyrooproducts.com
Table 3. Grid Fault Alarm Code and Alarm Code Description
LCD
indicate
Designation Description Repair
AL00 Utility Voltage
Over-Voltage
Utility Voltage
greater or
smaller than the
permissible value.
1. Wait for 1 minute, if the grid
returns to normal, the inverter
will automatically restart.
2. Check grid connection, such as
wires and connectors.
3. Make sure grid voltage and
frequency meet the proper
specifications.
4. If error code keeps recurring,
contact your local distributor for
help.
AL01 Utility Voltage
Under-Voltage
AL02 Utility Voltage
Over-Frequency
Utility Frequency
greater or
smaller than the
permissible value.
AL03 Utility Voltage
Under-Frequency
Contact your local distributor
for help.
AL04 BOOSTER_A Input
Over-Voltage
Over or Under
voltage at DC
input.
1. Disconnect ALL PV (+) or PV (-).
2. Check the open PV voltage is
outside the 120Vdc ~ 500Vdc.
3. If PV voltage is normal and the
problem still occurs, contact your
local distributor for help.
AL05 BOOSTER_A Input
Under-Voltage
AL06 BOOSTER_B Input
Over-Voltage
AL07 BOOSTER_B Input
Under-Voltage
Contact your local distributor
for help.
AL08 Anti-Islanding No Utility or Utility
Fail.
1. Disconnect ALL PV (+) or PV (-)
2. Check grid connection, such as
wires and connectors.
3. Check grid usability.
4. If Utility is normal and the error
code keeps recurring, contact
your local distributor for help.
AL 13 Phase of Utility is fail
AL14 Waveform of Utility
is fail
LCD
indicate
Designation Description Repair
AL09 Inverter Voltage
unbalance
Inverter Voltage
Waveform is in
unbalance.
1. Shut down inverter (unplug PV
generator from the input).
2. Check grid usability and restart
inverter (plug PV generator from
the input).
3. If error code keeps recurring,
contact your local distributor for
help.
AL10 GFDI Leakage current on
Earth conductor is
too high.
1. Unplug PV generator from
the input, check AC peripheral
system.
2. After the problem is cleared,
re-plug the PV. Check the PV-
Inverter status.
3. If error code keeps recurring,
contact your local distributor for
help.
AL11 Isolation Fault The impedance is
between PV (+)
and PV (-) and
Earth is smaller
than 1MΩ.
1. Disconnect ALL PV (+) or PV (-).
2. Check the impedance
between PV (+) & PV (-) and
Earth. The impedance must be
larger than 2MΩ.
3. If error code keeps recurring,
contact your local distributor for
help.