The Solar Family Series Inverter
30
9 Troubleshooting
In most situations,
the inverter requires very little maintenance.
However, if Inve
rter fails to
work
perfectly, please refer to the following instructions before calling your local dealer.
Should any problem arises, the LED on the front panel will be red and the L
CD will display t
he
relevant information. Please refer to the following table for a list of potential problems and
solutions.
Table 15
Troubleshooting list
Faults
Diagnosis and Solutions
Grid Fault
-Waiting for one minute, grid will go back
to normal working state.
-Making sure that grid voltage and
frequency complies with standards.
-Or, please seek for help from us
-Off to grid.
-Please check grid-connection, like wire,
interface, etc.
-Checking grid usability.
-Or seek for help from us.
PV Over Voltage
-Checking the panel’s open-circuit voltage
whether the value is close to or
already >Max.DC voltage.
-Please seek help from us when voltage
≤
Max.DC voltage.
DCINJ High
-Disconnect the PV (+), PV (-) with DC
input, then reconnect them.
-Check L line and N line to see whether it
has connection faults.
-Please seek for help from us when this
fault happens.
Relay Fault
-Disconnect the PV (+), PV (-) with DC
input, then reconnect them.
-Please seek for help from us if it can’t go
back to normal state.
*
Self Testing Fault
（
SF3.6KTN,SF4.2KTN,SF4.6KTN,SF5KTN
）
-Please check whether working in IN1 &
IN2 P mode.
-
Check PV1,PV2 if there is no connection
- Or please seek for help from us.
●
Check the warning or fault messages on the information panel. Record the message if displayed
for further action.
●
Try the solution indicated in
Table 15
.
●
If your inverter information panel didn’t have a Fault light, check the following list to make sure
The Solar Family Series Inverter
31
that the present state of the installation allows proper operation of the unit.
— Is the inverter located in a clean, dry, ventilated place?
— Have the DC input breakers been opened?
— Is the size & length of cables suitable?
— Are the input and output connections and wiring in good condition?
— Are the configurations settings correct for your particular installation?
—Are the display panel and the communications cable properly connected without damage?
