The ‘No Display’ issue is where the inverter doesn’t start up thus the screen goes blank and the inverter doesn’t generate power.
Troubleshooting Steps
- Check the DC isolators underneath the inverter are on and in good condition. Also check the DC isolators on the roof are on and in good condition.
- If qualified, you can measure the PV Voc at the MC4 connectors using a multimeter. Also in addition, you can use a DC tong tester to measure the Isc whilst the DC side is connected and switched on. Take note of these values.
Please note: Delta Energy Systems warranty states that the only service fee that will be reimbursed is the one incurred when replacing an existing Inverter (to the value of $150 plus GST).
Outcome
- If the Voc is less than 150Vdc, the panels are not producing enough power to startup the inverter. Contact your solar installer for assistance.
- If the Voc is greater than 150Vdc, the inverter is faulty. If under warranty, we will be happy to replace the inverter. For steps on how to lodge a Replacement Request, please click here. Please include at least the Voc voltage when submitting the Replacement Request.