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It is possible to build a much larger system using many inverters, however, you need to split the loads,
which is a good idea. A large system can have a common battery bank, so the solar array charges the same
battery.
Something to remember is that the inverters go through very stringent tests at our factory. They are tested
for everything, as well as long soak tests. When the inverter leaves the factory, it is working perfectly.
Therefore, any faults that appear are probably caused by installation issues.
To check fault codes, click on the ‘Fault Codes’ icon on the settings menu.
Figure 57 - Fault code pages.
The default diagnostic is here to help you find problems with the system. It is very useful in localising an
issue.
F13 - Working mode change
If you are making a change while the system is running, like parallel or disabling the parallel operation, it
may cause the system to crash. This is actually a very dangerous problem and can easily damage the inverter.
If you are making such changes, you need to isolate the inverter from the load. When the battery mode was
changed to 'No battery' mode, it will report F13.
If you get an F13 fault, the best solution is normally to reset the system.
F18 AC - over current fault of the hardware
This error is an overload on the 'Load' terminal, and it is also quite a common fault. This fault is possibly
caused by a heavy surge current from air-conditioners or by a battery issue. Generally, it is caused by a rush
current to the load due to many loads switching on at the same time.
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