R79

Since installing 600VDC 22uF capacitors two weeks ago I haven't experienced any error 72. 🤞
 

Since installing 600VDC 22uF capacitors two weeks ago I haven't experienced any error 72. 🤞
 

Today I received a document from the company in China that sold me the invertors addressing errors 72, 08 and 60. They suggested to put 18uF/600VDC across PV terminals. I can't however find capacitor with that kind of a specs so not sure if it isn't bs.
sop of capacitor(31-013935-00g) assemble to pv terminal ( f72&f08&f60 and flicker issue).docx

Thanks for sharing, I cannot see anything wrong with such a mod, the 18uf600v may be very difficult to source though. If impossible to find, you can go higher eg 22uF, and if 600V is a problem, you can go with 2x450V in series, but then need to double the capacitance (eg 47uF) 
 

Wow, those must be huge. Be very careful with those, they will store a massive amount of energy. The charge on them could be lethal for several hours if you don't have something to bleed it/them off, and even then it could take 10 minutes to be come non-lethal. These will be polarised; observe polarity.
I think that film capacitors would be better in this application. They are better suited to absorbing the high frequency surges in voltage that you find with switching  power supplied (such as the solar charge controller). Unfortunately, these will have to be X2 type or better, as they are across a significantly high voltage, and these capacitors are notorious for not lasting well, but that can't be helped.
Even 18 μF will be physically large and a challenge to fit inside the inverter. Use moderately thick wire (around 1 mm²) to the PV terminals, preferably with eye terminals crimped on. As already mentioned, they won't be very cheap, and you will likely need to source them from an on-line electronics retailer like Digi-Key, Mouser, element 14/Farnell, or RS Online.

Today I received a document from the company in China that sold me the invertors addressing errors 72, 08 and 60. They suggested to put 18uF/600VDC across PV terminals. I can't however find capacitor with that kind of a specs so not sure if it isn't bs.
sop of capacitor(31-013935-00g) assemble to pv terminal ( f72&f08&f60 and flicker issue).docx