Help indentifying where the problem might be.

[astroprojector]

Hi There,

I am not sure if this is the right forum for this question. However, I was wondering if any solar gurus help me to identify what the problem might be.

Below is my solar system

2023-06-13_16-11-46.png

Up until 05/06 all panels were producing energy. From 05/09 and until 06/15 the panel 1.2.13 stop producing at full capacity (See the Optimizer Voltage for panel 1.2.13 and comparission voltage to panel 1.2.18 below

2023-06-16_19-59-26.png

In fact all metrics are very different

Here is Current
2023-06-16_20-02-08.png

Energy
2023-06-16_20-03-23.png

Module Voltage
2023-06-16_20-04-28.png

Power

2023-06-16_20-05-28.png

I have the SolarEdge inverter. I submitted a ticket to see if they can tell me If the optimizer has stopped working and got the following reply.

"Upon checking the optimizer and panel voltages, we would like to inform you that the panel voltage is good compared to the adjacent panels and the optimizer voltage is in safety voltage, thus we cannot replace it at this point. We have paired the system to resolve the issue so please allow up to 6 hours. If the issue is not resolved we would advise you to contact your installers to inspect the DC connections as well as to measure the panel and optimizer voltages."

After the pairing they did, the system stopped seeing that module all together. If before the system was showing 47/47 panels, after the pairing it shows 46/46 panels.

I am not a newb to the solar installs. In fact, I added panels 1.1.18 - 1.1.25 and 1.2.1, 1.2.2, 1.2.4, 1.2.5, and 1.1.23 my self.

So my question, what am I not understanding here. Base on the charts, to me it looks like the voltage are not same, hence, there is an issue. Was that just "leave us alone" answer?

I checked the voltage of the panel and optimizer and it was fluctuating between 1 and 5 volts, I then connected another optimizer and voltage spiked to between 12 and 16 volts. I figured it look better and ran the pairing process, however, the system still shows 46/46 panels.

My installer no longer in business and any installer I called in my area, wants to charge between $200 - $400 for investigation.

Any suggestions to what I can do here and what can I reply to SolarEdge support, assuming they gave me an incorrect answer?

Thank you

[solarix]

I rest my case about on roof electronics. You need to get up there and replace the optimizer/swap the panel/isolate the problem....

[Mike 134]

If you run the report now do you see the 47th optimizer? If not my guess it's a bad optimizer that did not report in when they "paired" your system remotely.

Since you added panels yourself you know that if the wires of the string are disconnected from the inverter each optimizer adds one volt to the string, do you have the correct voltage for the number of optimizers on that string?

As the above post mentioned swap components to be sure it's a bad optimizer and not a solar panel or connector.

[scrambler]

If the panel has not reappeared, have you told them the panel disappeared after the pairing?
They cant possibly ignore that....

[davidcheok]

Dead optimiser