Posted January 10, 20232 yr This post is to comment on my very pleasant experience with the Goodwe Technical Service. I have only read about negative experiences in this forum and it is only fair that I comment on mine, which was very pleasant. Thanks to an intervention in one of the forum threads and with a user who offered to give me information about his own system with the same combination of a Goodwe ES5048 + Pylontech Batteries; I realized something was wrong with my system as I couldn't charge my 4 pylontech batteries at more than 50 amps. I started a Goodwe help desk ticket and after going through the 1st level engineer (who are the ones who really don't have deep knowledge and are irritating) I asked him to escalate the ticket to a 2nd level engineer. Gentlemen, if you achieve that, you will see that only in this way will the majority of the users of this forum be able to communicate speaking the same technical language with the required depth. His attention was extraordinary, an Engineer from Goodwe, China. He did a single test remotely and told me that he was right and that he would contact Goodwe's R&D department. After 2 days I had the answer: my inverter had one of the two charge/discharge circuits broken; so he told me that they should change the power inverter. I had bought it in 2019 and Goodwe considered it a warranty exchange. From that moment we established daily communications to refine all the details until the arrival of the new Unit at my home, without paying any extra payment, not even freight. Goodwe contacted the dealer (my seller) directly and asked them to send me a new identical inverter. Keeping that ticket open until he personally took it upon himself to flash the new inverter with the latest firmware, all working perfectly. Edited January 10, 20232 yr by Cef
January 10, 20232 yr Could you see how the engineer came to that conclusion? what tools did he use? what tools did he used??
January 10, 20232 yr Author 17 minutes ago, Edu4rd0 said: Could you see how the engineer came to that conclusion? what tools did he use? what tools did he used?? Well, it was very simple. Remotely he or she was able to confirm: 1) That there was no alarm or warning stored in the power inverter, a situation that she had also previously informed him about. 2) That I actually had 4 Pylontech batteries of the US3000C type configured, so I knew that if these batteries had enough power they could be perfectly charged almost up to Goodwe's rated limit of 100 amps (in practice just over 90 amps). 3) Finally he made sure that this power was available to the inverter, and proceeded to Remotely reconfigure one of the Battery Charge Periods (since I used the economy mode) placing a High Percentage Value of Nominal Power to charge from the Grid. He kept me informed of what he was doing and asked me not to touch anything until he saw the results himself. Everything went very fast.
January 17, 20232 yr Yeah I have never seen my batteries charge faster than around 89amps, even though the limit shows 100A charge and 125A discharge. Edited January 17, 20232 yr by Tinuva
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