Apsystems DS3-L not working

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  • Wpenno
    Junior Member
    • Aug 2022
    • 12
    #1

    Apsystems DS3-L not working

    Hello
    My name is Wayne and I am from the interior of British Columbia Canada, My friend recently installed a 10KW system of grid tied PV on his roof. He used Apsytems DS3-L microinverters. After the install he is have a problem where the inverters worked for the first day after install then after a dark night the inverters would not start producing again the next day. He physically had to unplug the DC wires from the panels going to the inverters to cause the inverters to reboot and then they produced power all day again. After the next next night of no DC the inverters will not "wake up" with the arrival of the next days sun and start producing unless he roboots them all everytime. Has anybody experienced this issue or does anyone have any ideas what would cause these microinverters to behave this way? Every morning all of his panels show up as "NC" on the APsystems EMA monitoring app. After he reboots them the led on the inverter starts to flash the self diagnostics sequence then they start producing power and the EMA app show the corresponding panels as connected and producing.
    Tags: None
    • Hjvnoort
      Junior Member
      • Nov 2022
      • 15
      #2
      Is the problem solved yet?

        Comment

        • Hjvnoort
          Junior Member
          • Nov 2022
          • 15
          #3
          I’ve the same problem.

            Comment

            • Wpenno
              Junior Member
              • Aug 2022
              • 12
              #4
              Originally posted by Hjvnoort
              I’ve the same problem.
              No the problem is not resolved and APSytems says they are working on a software fix. But so far customer support has been poor. Since this is a new installation I expected APS to exchange all the bad units with new ones as part of a warranty issue but that have not done that, has you had any luck resolving the issue?

                Comment

                • Hjvnoort
                  Junior Member
                  • Nov 2022
                  • 15
                  #5
                  It’s exacly the same for me (on the other side of the world). I installed 5 ds3-l’s on 5/nov/2022 and they never start up automatically. Apsystems told me by phone and email that they will solve the problem by a firmware update. The update was planned the end of last week. Distribution could take several days.
                  Today I’ve started 1 of ds3-l. There was no reaction at all. After 1 hour he started producing. But after one spike he stops an other hour and after that he started normal producing. This behavior looks like an update but I saw this also 2 days ago. The next morning he didn’t start.
                  The support from APsystems is very poor. No updates after the first reaction. They reach my limits.

                  When they can’t fix it with an update they have a big problem because in many cases they are on a nearly unreachable place installed.

                  When there is some progress I’ll post it on solartalk.

                    Comment

                    • qwerty
                      Junior Member
                      • Nov 2022
                      • 6
                      #6
                      I'm having similar issues with a DS3-L installation that was done a few days ago. Six DS3-L units, all initially seemed to work but are now showing "NC" with no power output.

                      To summarize, I first added the DS3-L units to the ECU-R in EMA manager, then mounted them and connected the panels (no AC yet), the green LED blinked upon initial connection. They were detected and showed up online in EMA manager & EMA app and they seemed to work, but about 30 minutes later I checked on them and they were no longer functioning (showing "NC", no AC power is produced now, no LED). It's been very sunny here for the past few days but I have not seen them come back to life.

                      Can you please give more detail about the software/firmware update that APsystems promised? Is it an update to the DS3-L or to the ECU-R? Did they say if it would be automatically deployed, or must things be manually updated? I ask because the ECU-R automatically updated its firmware last night from 2.1.3 to 2.1.4, but the problems with the DS3-L units remain.

                        Comment

                        • Hjvnoort
                          Junior Member
                          • Nov 2022
                          • 15
                          #7
                          It is a firmware update for the inverters. My ECU is now also on version 2.1.4. On 5/11 my ECU started at version 2.0.7b. The updates are fully automatically. Even when the inverters don't produce APSystems told me.
                          Last week they have installed new firmware on the inverters but without result. This week there comes an other update to solve the problem.

                          I saw the quality claim from APsystems on their site but de Ds3-l's don't produce and they can't fix it in a normal period of time. Very strange that they didn't saw this in the testprocedures.

                          There comes a time that they have to change the inverters for better ones.

                            Comment

                            • qwerty
                              Junior Member
                              • Nov 2022
                              • 6
                              #8
                              Like you, my ECU-R also started on 2.0.7B when I first unboxed it. It just updated itself again a few hours ago, now it is on 2.1.5. So it has been running 3 different firmware versions in the past 24 hours (2.1.3 -> 2.1.4 -> 2.1.5). Things are still not functional, but I suppose the steady stream of updates can be taken as a sign that someone at APsystems is actively working towards a solution.

                              I asked about getting replacement inverters and the response I got implied that this might be a widespread issue, so it seems like any new units may end up in the same state. I am supposed to receive more news as soon as it is available, but I don't know when that will be.

                              I am sending positive thoughts to the firmware developers at APsystems; they are probably under a lot of pressure to come up with a quick fix.

                                Comment

                                • Hjvnoort
                                  Junior Member
                                  • Nov 2022
                                  • 15
                                  #9
                                  The inverters are still not working. Day 15 for me.

                                    Comment

                                    • Twoink
                                      Junior Member
                                      • Nov 2022
                                      • 8
                                      #10
                                      Installed 2 plants in the Netherlands with DS3-L inverters... Exactly the same situation. APsystem promised software updates but no difference so far.....

                                        Comment

                                        • bcroe
                                          Solar Fanatic
                                          • Jan 2012
                                          • 5203
                                          #11
                                          My decade old inverters have worked flawlesly since new, with
                                          no external software interaction whatsoever. It is my opinion
                                          that the mfrs originally added software access so they could
                                          save money on displays, touting it as a "feature". Given the
                                          general inability to consistantly produce bullet proof programs,
                                          I see it as just a liability. And making something more complex,
                                          less free standing, than it needs to be.

                                          Now some mfrs are trying to use it for more control of purchased
                                          products (ask the farmers about their court win), and hackers
                                          are using it to our detriment. not good Bruce Roe

                                            Comment

                                            • Hjvnoort
                                              Junior Member
                                              • Nov 2022
                                              • 15
                                              #12
                                              Just talked to apsytems. The problem seems to be clear. The inverters turn themselves off at 45 volts instead of at 60. (So it depends on de panels). Within a few days I will receive new inverters that are set to 60 volts. Remote update doesn't seem to work or takes too long. I'm a little bit happy but still have to wait and see.

                                                Comment

                                                • Twoink
                                                  Junior Member
                                                  • Nov 2022
                                                  • 8
                                                  #13
                                                  Originally posted by Hjvnoort
                                                  Just talked to apsytems. The problem seems to be clear. The inverters turn themselves off at 45 volts instead of at 60. (So it depends on de panels). Within a few days I will receive new inverters that are set to 60 volts. Remote update doesn't seem to work or takes too long. I'm a little bit happy but still have to wait and see.
                                                  What brand / type panels do you have?

                                                    Comment

                                                    • Hjvnoort
                                                      Junior Member
                                                      • Nov 2022
                                                      • 15
                                                      #14
                                                      HYUNDAI HIE-S400VG 400WP

                                                      Open voltage 46.3 (datasheet) (at this moment on the roof 45.0/45.1 open voltage)

                                                        Comment

                                                        • Twoink
                                                          Junior Member
                                                          • Nov 2022
                                                          • 8
                                                          #15
                                                          Originally posted by Hjvnoort
                                                          HYUNDAI HIE-S400VG 400WP

                                                          Open voltage 46.3 (datasheet) (at this moment on the roof 45.0/45.1 open voltage)
                                                          I use different brands at 2 projects:
                                                          Longi LR4-60HPH-380 - VOC of 38,7 (4 sometimes starting)
                                                          Trina TSM-DE09.08 405 - VOC of 41,4 (3 never started)
                                                          Trina TSM-DE09.05 395 - VOC of 41 (only 1 of 14 started for 1 day)

                                                            Comment

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