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Clenergy SPH Installation and Operation Manual
6. Troubleshooting
When installed and operated correctly, the SPH inverter will give many years of
trouble free operation. Sometimes fault messages will be displayed due to
abnormal conditions on the PV array or electric grid. These messages will clear
automatically and the unit will restart once the PV array voltage and electric
grid conditions return to the normal ranges. Occasionally you may experience a
fault message that does not clear automatically when the conditions return to
normal. This may be due to a problem with the overall PV installation, or an
internal fault of the SPH inverter.
If the inverter continues to show a fault message then you may perform the
visual inspection and procedure ONLY.
If you are a qualified solar inverter Maintenance technician you may be able to
perform other tests as below.
Do not remove the covers. Warning - Risk of Electric Shock. Please follow the
below instructions
Visual Inspection
1 Check the status of the Inverter to AC utility connection switch or MCB
Off/On
2 Check the status of the Inverter to Solar panel connection switch or MCB
Off/On
3 Check the status of the RED LED on the Inverter Off/On
4 Check the status of the BLUE LED on the Inverter Off/On
5 Check the error message on the LCD display on the Inverter
6 Check the smartmeter been installed
Failure Verification
1 Turn on the external DC switch
2 After connecting the DC , Check the message sequence on the LCD display
should be
“
INV Waiting
”
→
“
No Utility
”
and the RED fault LED keeps on.
3 Turn on AC switch or MCB to power on the inverter.
4 Verify that the inverter starts to work after a short delay. (This may take a
few minutes to verify that the electric grid is stable.)
5 If inverter works normally, the LCD display panel will show “Working mode”
and power is delivered to the electric grid. Otherwise the LCD display an error.
