Hi guys,

When my 8kw Sunynk inverter was installed all that I needed to do to charge when needed, was to untick the use timer box and the grid would charge the battery. Since two months ago the use timer box will not stay unticked.

I untick the box, push ok and exit the system mode. When I go into the main screen I can see that the battery is not being charged and when going back into system mode, the box is ticked. If I go into other screens apart from the main screen and back into system mode, the box is still ticked so it is definitely not a case of the ok button not saving the change on exit of the use timer screen.

I can charge the system by simply raising the particular time slot to 100% and ticking it and charging happens no problem, so it is only the use timer check box that defaults back to ticked. Scheduled charging levels seem to work fine. (No boxes are ticked in basic settings - so system is not locked to changes etc)

The only thing that has been changed is that at one point I needed to charge from a generator so settings in the aux screen were changed in order to accomplish this but these have all been put back to normal.

Sunsynk maintains that the way I now need to charge is normal and don't want to hear that the other systems installed work the way mine used to. We have done a firmware upgrade, shut the system off and restarted to no avail. I have not done a factory reset as yet.

I am at a bit of a loss as to why this should have changed and what I can do to restore this function which is quite handy when you have someone housesitting who is not familiar with inverters.

Anyone experienced the same problem and rectified this?

 

cheers Brent

check if grid peak shaving is enabled - if so then disable it

Also check that you have the latest firmware - there was a version of firmware that caused oddities with the use-timer funciton

On 2023/08/22 at 1:08 PM, mzezman said:

check if grid peak shaving is enabled - if so then disable it

Also check that you have the latest firmware - there was a version of firmware that caused oddities with the use-timer funciton

Firmware version is latest. I unchecked the grid peak shaving and this made not difference. At a loss.

Are you using the SunSynk dongle with the inverter? If yes, can you remove the dongle from the inverter (unplug it) change the settings manually on the inverter screen and see if they stay afterwards.  Refer to this thread with a similar issue. It was a problem with the dongle. However that user reported the same issue with another dongle plugged in and never came back to say, how the problem was finally resolved.

 

Edited August 23, 20232 yr by PowerUser

Thank you, I had read that post but it seemed to only affect the time settings boxes, not the main use timer check box. What is strange is that it used to work fine and dongle has not been changed and the individual boxes accept and hold changes without a problem.

I will give it a go on the weekend and post with the positive or not result.

On 2023/08/22 at 1:08 PM, mzezman said:

check if grid peak shaving is enabled - if so then disable it

Also check that you have the latest firmware - there was a version of firmware that caused oddities with the use-timer function

Finally worked out where the problem was. Having Unticked grid peak shaving to no avail until I realised that  the gen peak shaving setting would probably have the same same effect (yes I am that slow) I found that this was the case. I tried to untick via the app from work on Friday and for some reason the changes I do on my app do not go through despite the app popping up a notification that he change is actioned or some such. I did this on the inverter when I got home and lo and behold problem all sorted. Thank you so much for your help!! It would have been sorted same day if only my brain got into gear a little sooner.

If anyone could tell me why changes made on the app don't take that would be great too, no doubt I am missing something?

 

cheers

Brent 

On 2023/08/23 at 5:54 PM, PowerUser said:

Are you using the SunSynk dongle with the inverter? If yes, can you remove the dongle from the inverter (unplug it) change the settings manually on the inverter screen and see if they stay afterwards.  Refer to this thread with a similar issue. It was a problem with the dongle. However that user reported the same issue with another dongle plugged in and never came back to say, how the problem was finally resolved.

 

@PowerUser Still operating without a dongle. So the dongle packaged with the inverter did not work. A new sealed dongle also did not work. Waiting on a second hand/used dongle to test. Apologies about the late follow-ups, am just basically at the mercy of the suppliers/installers, but will keep the thread updated as and when things change

4 hours ago, Marc FH said:

@PowerUser Still operating without a dongle. So the dongle packaged with the inverter did not work. A new sealed dongle also did not work. Waiting on a second hand/used dongle to test. Apologies about the late follow-ups, am just basically at the mercy of the suppliers/installers, but will keep the thread updated as and when things change

Yes, keep us updated. Very strange issue.