7. Maintenance
8. Trouble Shooting
Solis-2.5K-2G does not require any regular maintenance from the user. However, impurities such
as dirt may affect the heat accumulation of the inverter and hence its performance. The dirt
on the inverter can be cleaned with a soft brush.
CAUTION:
Do not touch the heat sink when the inverter is operating. Some parts may be hot
and cause burns. Turn OFF your inverter (refer to Section 5.2) and let it cool down
before you do any maintenance or cleaning of inverter.
The LCD and the LED status indicator lights can be cleaned with a damp cloth if they are too
dirty to be read.
NOTE:
Never use any solvents, abrasives or corrosive materials to clean the inverter.
Alarm Message
OV-G-V
UN-G-V
OV-G-F
UN-G-F
G-IMP
NO-Grid
OV-DC
OV-BUS
UN-BUS
SHORT-PRO
INI-PRO
TEM-PRO
GROUND-PRO
Failure Scenario
Over grid voltage
Under grid voltage
Over grid frequency
Under grid frequency
Grid impedance high
No grid
Over DC voltage
Over DC bus voltage
Under DC bus voltage
Short circuit fault
System initial fault
Over Temperature
Ground fault
Table 8.1 Failure Scenarios
NOTE:
If your Solis-2.5K-2G gives any alarm message listed in Table 8.1, turn off your
inverter (refer to Section 5.2 to stop your inverter) and wait for 30 minutes
before restarting it (refer to Section 5.1 to start your inverter). If the failure
has not been cleared, contact your local distributor or the service center.
Please have the following information ready with you before you contact us.
1. Serial number of Solis-2.5K-2G;
2. The distributor/dealer of Solis-2.5K-2G (if available);
3. Installation date.
4. The description of problem (i.e. the alarm message displayed on the LCD and the status
of the LED status indicator lights. Other readings obtained from the Information submenu
(refer to Section 6.2) will also be helpful.);
5. System design for the solar PV array configuration (e.g. number of panels, capacity of
panels, number of strings, etc.);
6. Your contact details.
Trouble Shooting
Solis-2.5K-2G is designed in accordance with the standards of grid-tied operation, safety
requirements and electromagnetic compatibility. Before being delivered to the customer,
Solis-2.5K-2G has been subjected to several tests to ensure its optimal operation, reliable
performance and good durability.
If an operational failure occurs, the LCD screen will display an alarm message. In this
case, the inverter stops feeding into the grid. The possible failure scenarios and their
corresponding alarm messages are listed in Table 8.1:
.25.
.26.
