Load and PV data error, plus battery won’t charge

[lms10000]

Help! Both my fox and energy stats apps are showing some absurd data around load and PV. The desktop version is also showing the wrong data, and this has been happening since about 1:30 this afternoon. I took the screen shots at around 8:30 this evening.

As well as seeing the wrong data, I am also unable to set my battery to its usual overnight charging slot - I get the ‘busy’ message on the attached screen shots. I think the problem could be with the inverter rather than the app, and that I might need to do something with DC and AC switches.

Just for additional context, I tried using the load balancer today to take advantage of an Octopus free energy session. I usually just use the basic settings, but wanted to discharge back to the grid before charging up again during the free session. The mode scheduler worked fine for the discharge, but not for the charging. I realised about 30 minutes in that it wasn’t charging and, so disabled the mode scheduler and went back to the basic battery settings. At this point, it started going wrong – the numbers went haywire and I started seeing the ‘busy’ message.

This might all be a coincidence but I thought it worth mentioning. I raised a support ticket with Fox, this afternoon, but don’t know how long it will take them to investigate. Grateful for any assistance!

Thanks in advance.

[Dave Foster]

Hi, just reading through now, the load readings as you say look crazy.

If you are getting busy when trying to write to the inverter (either schedules, charge periods or minsoc) there are really only 2 possibilities - the first is that the datalogger (dongle) is either not connected to your wifi or the signal is poor to it, the second possibility is that the manager in the inverter has crashed.

It's probably easier to assume the second and to restart the inverter - if you've not done that before there is a video in the guides section viewtopic.php?t=5 otherwise you need to turn off/isolate PV to the inverter, then turn off/isolate AC to the inverter, then power off the batteries and open the battery DC isolator.

Wait until the inverter screen goes blank, then reverse the process, so turn on battery DC isolator, power on the batteries, turn on AC to the inverter, turn on PV to the inverter - after a minute or two of checking the inverter should now be online and showing normal. Wait 5 minutes and then see if you can write a charge period to the inverter (make sure the schedules are disabled).

It may be that the wifi signal is poor at your inverter which is what started the event, writing schedules to the inverter does write a lot more data than normal charge periods so it is worth checking the signal strength at your inverter as well.

[lms10000]

Hi Dave,

Thanks as always for your help with this - Will's video has enabled me to fix the issue. Much appreciated!

Also, your point about poor Wi-Fi signal and demand on the inverter is interesting. I have had lots of problems trying to charge the batteries through the mode scheduler - it always glitches when I attempt to fill out the 'max soc' field. Oddly, I have never had an issue when setting a forced discharge through the mode scheduler (although I've only done so twice).

The system set up is in my garage. I have a Wi-Fi booster out there, but the signal is still quite poor. I'm upgrading my broadband in April, so will be interesting to see if this makes a difference.

Thanks again.
Luke