Service Manual
Product
Axpert Max 3600-24
Doc No.
P1911061
Version
00
PAGE
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 p
ress “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.
3. Check the
main board by following “3.5 and 3.6”
How to solve
Repair the main or replace it directly.
2.2.2. 09 fault
Description
Bus soft start fails.
Possible reason
DC-DC module was damaged or BUS soft start module was damaged.
How to check
1. Check the main board b
y following“3.6; 3.7”;
2. Check the main board by following“3.1; 3.2; 3.3; 3.4”.
How to solve
Repair the main board or replace it directly.
2.2.3.
Warning
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.
1.7 Test step
After replacing all defected components, testing steps can be used to confirm the repair
result and the reliability of the Inverter.
Set up the testing system as below:
