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8
Problem solving
8.1
LED warnings
•
Inverter LED not lit
If the LED is not lit or does not flash when there is
sufficient solar energy available, there is probably a
fault in the solar panel wiring.
Check the wiring.
•
Inverter LED flashes
If the LED flashes when there is sufficient solar
energy available, there is probably no mains power
supply.
Check the earth leakage circuit breaker and the fuse in
the meter cupboard.
•
Inverters react differently
At low solar energy levels, the inverters will barely
start up. Minor production variations in the solar
panels and the inverters can lead to one inverter
starting up slightly before the others.
If, at adequate solar energy levels, one inverter is
active and another is in 'Stand-by' mode, the coupler
connector is probably either missing or incorrectly
fitted.
Check or fit the coupler connector.
8.2
Display messages
Unusual conditions can arise during installation and com-
missioning. These abnormalities are signalled in the display.
Most of these messages are unimportant and attributable
the state of the system at that particular moment. E.g.
error 40. This appears whenever the system is not connected
to the grid. Other messages indicate possible errors that have
been made when installing and commissioning. Only a few
messages indicate failures that require repair by an installer.
The codes and instructions on how to proceed in each case
are listed below.
60
717.545 | 08.13
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