Hi MEP ELECT
Just to keep you up to date on my failed five month SolarEdge 4kW system, is still down.
As we discussed disconnecting the DC from the inverter gave 16.9V. The new control PCB was fitted yesterday but after pairing we got P ok 14/14 for my 16 panel system and only 1.6V DC and of course no output. According to the monitoring portal, panel 14 last communicated May 1st and panel 11 last communicated May 3rd. which more or less coincides with the two failures.
Because there appears to be 16.9V on the string the SE4000 inverter was replaced today with a new one. Sadly we still get 14/14 and 1.6V DC and no output.
It may be possible to reach panels 11 and 14 from the ridge to change the boxes if it ever stops raining. Failing that its up with the scaffold and change the boxes. Unfortunately I have a conservatory across the back of the house so they will need an eight meter scaffold bridge. It's not going to be cheap or quick.
Regards, Trader9.