June 11, 20215 yr Good morning fellow members. I am new at this so please excuse my ignorance. In November 2019 I had a Voltex 5kva 48A inverter installed with 4 X 100ah 12v Batteries. All worked well and in December 2020 it started flashing an Error 04 when there was load shedding and it would shut down in a few minutes, even when we switched off everything in the house and it was only drawing 50w. After begging the installers for 7 months to test the batteries they eventually came out and found the batteries were weak. 2 weeks ago they replaced the batteries with a brand new set of the same spec. That evening as load shedding started the exact same thing happened again flashing Error 04 and the inverter switched off and we were in darkness. Yesterday they came and placed a temporary 2.4kw lithium (50A 50ah) battery to see what happens. As soon as load shedding started the whole system switched off and we had no backup power. Now the inverter wont even switch on again. Does anybody here know what could be the cause of this? Could the inverter perhaps be not charging the batteries leading to the batteries dying instantly? I am at a loss here. Thanking you for your inputs.
June 11, 20215 yr hie everyone just to take you back what was your lithium battery status am sure there are led indicators on the battery
June 11, 20215 yr Author 2 minutes ago, silvester begedu said: hie everyone just to take you back what was your lithium battery status am sure there are led indicators on the battery Hi, it just showed a continuous red LED light. Every 30 seconds or so it makes a tick tick sound for a split second with a flashing green led light then immediately returns to just a red light.
June 11, 20215 yr Just now, GBF said: Hi, it just showed a continuous red LED light. Every 30 seconds or so it makes a tick tick sound for a split second with a flashing green led light then immediately returns to just a red light. hi confirm this was the inverter not the battery
June 11, 20215 yr Author Just now, silvester begedu said: hi confirm this was the inverter not the battery This is on the temporary lithium battery they put in yesterday. Inverter wont switch on at all.
June 11, 20215 yr 2 hours ago, 87 Dream said: Hi guys please read this post or join this conversation. You guys have the same issue... Lets group this & solve the issues together. 87 Thank you 87 Dream. Yes, our problems seem the same. Fortunately, my inverter still switches on.....but is also not charging the batteries....and until it does, I will & have not run anything off them.....and they still show a float voltage of 27v (I cannot as a pensioner afford to damage a new set of batteries...in fact this goes for all of us)
June 12, 20215 yr Author 18 hours ago, 87 Dream said: Hi GBF There are a whole host of reasons your system can get into such a mess. Here is the error message or fault code chart so you can make sense of it. Wat I suggest is the following it & when you get it to switch on. Press & hold enter until the menu setup comes on. Then scan through all the settings & note them down & then post these on here. The Axpert type of inverter is a very tricky animal to get working correctly. No doubt you in the right place & there is a lot of info & gurus on how to tame her. Get the list of menus options usually they run from 1-34. Note them all down on a piece of paper then post them on here. We will find the offending setting & suggest new ones that will improve your situation. 87 Hi there, thank you so much for your reply. So the inverter eventually switched on again by the tie i got home from work. The batteries must have drawn down to zero and switched off the inverter. As I sit here, its been 36 hours since the inverter switched off and the Lithium battery has managed to slowly charge itself up to 75% according to the BMS on the battery. I am assuming this is far too long for a 2.4kw lithium to charge to 75% so could it be that my inverter is simply not charging up the batteries properly? When I had the 4 X 100ah batteries hooked up previously, I suspected that they were just never charging which is why the inverter kept flashing Error 04. Unfortunately the standard AGM batteries dont have their own BMS to verify their charge. The screen on the inverter would show them as fully charged within a minute of charging yet they couldnt supply power for even a couple of seconds. We may have load shedding again at 10pm tonight so I will wait and see how the replacement lithium battery reacts this time. I will note down all the settings you mention and post them here shortly. Could it be a case of a burned fuse or wire somewhere inside the inverter which caused it to weak charge the batteries exactly one year into owning it?
June 13, 20215 yr Author On 2021/06/11 at 11:06 PM, 87 Dream said: I suspect your fears are correct. Send the settings. You have come to the right place. We will help you on this one. Follow the instructions above... 87 Hi 87 Below are the current settings that the inverter company inputted when they installed the temporary loan Lithium battery last week. Prior I have only been running 4 X 100ah 12v batteries which cant hold the charge for more than a few seconds when load shedding starts. My settings you asked for are as follows (Version U1 72 30): 00 ESC 01 UE1 02 40A 03 APL 04 5d5 05 USE 06 LFD 07 TFD (the middle letter was a weird looking symbol that was almost an F?) 09 50Hz UE1 11 40A 12 47V 13 51v 16 SNU 18 60N 19 ESP 20 LON 22 AON 23 byd 25 Fd5 26 54.6v 27 54v 28 51G 29 45v 30 ONE 31 56E 32 AUT 33 Ed5 34 58.4v 35 60 36 120 37 30d 38 dl 5 30 Ad 5
June 13, 20215 yr Author 24 minutes ago, 87 Dream said: Hi GBF Thanks for the settings. Good also to see that your inverter is a genuine Voltronics inverter & not a cloned copy. These settings seem already tweaked for your loaned lithium battery unit already. Also the fact that this is a loan unit means that whatever settings I provide you with won't really assist you with this particular battery inverter combination. Lets rather wait until they return your said 4 X Lead Acids then we can add some meaningful settings going forward. What did help another forum member was to change his settings in no. 5 to AGM. Which is to tell the inverter that Absorbed Glass Mat batteries are being used. These defaulted settings are a bit easier on the battery. I only set Number 5 menu option to USE when I connect up Lithium batteries because then I can change the battery profile. It did work for him. He had experienced some charging issues much the same as you. Lets explore some ideas once your lead acid batteries are back in operation... 87 Hi 87 Thank you for your confirmation of settings. I will touch base if and when they decide to replace the batteries. Thank you also for spending so much time reading my posts and for all your answers, its much appreciated. GBF
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