SERVICE MANUAL
5KVA-220V/230V
7
V201703A
grid input. Turn on the switch, the LCD will light up and wait for the battery connecting to load.
If the connection is failed, please record the fault code.
Step 2: Test the grid charging mode.
Before turning on the inverter, only connect the utility and battery with the inverter. Without press any
buttons, the LCD will light up. And wait for the utility connecting to battery.
If the connection is failed, please record the fault code.
Step 3: Test the solar charging mode.
Before turning on the inverter, only connect the solar and battery with the inverter. Without press any
buttons, the LCD will light up. And wait for the solar connecting to battery.
If the connection is failed, please record the fault code.
2.3 Fault condition
Note:
When open the top cover, please have a look first, are there any obviously damaged parts?
When take the main board out, please have a look around, are there any obviously damaged
parts?
2.2.1. Not working at all/ No display
Description
The inverter couldn’t startup completely.
Possible reason
1. SPS module damaged.
How to check
1. Firstly, please measure the resistor between BAT+ and BAT-. If it is not shorted,
only connect the
inverter with battery, and press “ON” button, could the inverter
startup? If not, please check the fan.
2. If the LCD couldn
’t light up and fan doesn’t work, please disconnect all the wires
and open the top cover, and then take the main board outside by following part 4.
How to solve
Replace the main board.
2.2.2. 09 fault
Description
Bus soft start fails.
Possible reason
DC-DC module was damaged.
How to check
Check the main board
by following “3.1~3.4”;
How to solve
Repair the main board or replace it directly.
2.2.3. 56 fault
Description
Battery couldn’t be detected.
Possible reason
Wire connection or fuse was burnt.
How to check
1. Check the wire connection, the priority of the battery cable;
2. Check the main board
by following “3.1”.
How to solve
Repair the main board or replace it directly.
