August 21, 20232 yr My Five Star 48v 8KVA 120A 6000W inverter made a loud bang when the grid power came back on, tripped the DB, shut down...now has 04 error, not 04 low battery warning but a 04 error. My inverter was on a table with a multiplug screwed into the AC Out The setup has been working fine for nearly a year now Power now going in but nothing coming out I am looking for an internal fuse. Any suggestions? Edited August 21, 20232 yr by Gromit
August 21, 20232 yr 38 minutes ago, Gromit said: ..now has 04 error, not 04 low battery warning but a 04 error As far as i am aware, then is no error code 04. 04 is a low battery warning.what is your battery voltage, and what is your menu option setting 29?
August 21, 20232 yr 42 minutes ago, Gromit said: My Five Star 48v 8KVA 120A 6000W inverter made a loud bang when the grid power came back on, tripped the DB, shut down...now has 04 error, not 04 low battery warning but a 04 error. My inverter was on a table with a multiplug screwed into the AC Out Power now going in but nothing coming out I am looking for an internal fuse. Any suggestions? If your machine is not under warranty open it up and take a birds eye view image of the internal then I can identify the fuse. It will tell if if its the same as the MAX8KW.
August 21, 20232 yr Author 5 hours ago, BritishRacingGreen said: If your machine is not under warranty open it up and take a birds eye view image of the internal then I can identify the fuse. It will tell if if its the same as the MAX8KW. Thank you. Edited August 21, 20232 yr by Gromit
August 21, 20232 yr 1 hour ago, Gromit said: Thanks, your images are very clear, but I dont see a big fuse in the bottom left hand side, which I normally expect on these larger machine. There could be a thermal breaker, can you see one on the bottom panel.? It looks like a small breaker with a round reset button. Unfortunately it appears that your machine is a clone of Axpert, and cannot relate to the pcb modules as shown.
August 22, 20232 yr 1 hour ago, Gromit said: Hi Anyone know of a decent inverter repair shop in the West Rand ? If the East is also ok try @BritishRacingGreen
August 22, 20232 yr 4 hours ago, Gromit said: Anyone know of a decent inverter repair shop... I hate to say it, but it may not be worth repairing. I see signs that they are really skimping in the design; for example, the battery terminals look like the same ones I used in a past job, and those were rated at 80 A. A 6 kW inverter is going to have to pull 120 A plus losses from 48 V. If I'm right, that part is being used at up to 56% above its design current. I see they skipped the input chokes. The relays look the same as the ones on my 5 kVA model. So those might be being used at up to 60% over their rated current. The main transformer looks much the same as my 4 kW model. And these are just the things I spotted from a quick look at your photos. So it looks to me that they took a 5 kVA 4 kW design, and called it a 8 kVA 6 kW model, perhaps beefing up a few parts here and there, but not everything that needed beefing up. I'm actually amazed that it lasted the year that it did.
August 22, 20232 yr Author Hi UPDATE Found my User Manual and it says ERROR/FAULT 04 is bus soft start failure ?!?
August 23, 20232 yr 7 hours ago, Gromit said: ERROR/FAULT 04 is bus soft start failure ?!? That's more bad news, I'm afraid. Bus soft start failure often means a short circuited bus, which usually means IGBTs and possibly also MOSFETs have failed. These are expensive parts, and it's tedious replacing them, so the labour cost is high too. Add to that the lack of schematics and parts lists; it will be based on a Voltronic design, yes, but what exceptions are there?
August 23, 20232 yr On 2023/08/21 at 1:00 PM, Gromit said: loud bang when the grid power came back on, tripped the DB, Should you get it repaired or replaced with a diffrent inverter just a question is your db board protected by a SPD? When Eskom is restored after LS there is transient and overvoltage episodes that most probably damaged the inverter. If not get a Spd fitted to protect all sensitive equipment connected to your DB board. On 2023/08/21 at 1:00 PM, Gromit said: My inverter was on a table with a multiplug screwed into the AC Out The above statement is a bit worrying that you are runninga 6kw inverter output through a multiplug connecting devices how? with extension leads? If that is the case is there at least an Rcd(earth leakage) connected to the output and are you creating a earth/ neutral bond before the Rcd? If @BritishRacingGreencould not help with repairs you can ask @Vissie he repairs all types of inverters and is based in Centurion. Edited August 23, 20232 yr by TaliaB
November 20, 20232 yr Author On 2023/11/19 at 10:55 AM, DeBruin said: Gromit did you solve/Repair? I have the exact same problem now. Hi Yes A guy by the name of Elton in Westgate (house next to shopping center) advised me that i had blown my inbound MOSFETS. He replaced and repaired them for R1500 he had my inverter for a week and its been working great ever since i put a surge proyector plug on 🙂 . His number is 0.8.4.8.9.7.6.7.4.1 Edited April 10, 20242 yr by Gromit
January 30, 20242 yr On 2023/08/22 at 9:29 PM, Gromit said: Hi UPDATE Found my User Manual and it says ERROR/FAULT 04 is bus soft start failure ?!? If possible can you scan page where it shows this error code and description
March 27, 20242 yr Hie to those who have five star products that are burnt or with error codes take the invertor to five star shop at China Multiplex Johannesburg, thy are the importers thy have all parts and spares it's not a bad product I have been installing and preparing the products for over 8 years now, it's so cheap I will help you there ask for Arthur tell him Desire refered you I will fix the issues for u error 4 issues it's issualy burnt musffets it's R650 to replace them and labour of R300. It's caused by over load or load surge during startup it's mainly caused by elements on load during start ups or coils of motors on start ups.0x7x3x9x7x0x2x5x5x0 in Johannesburg that's my direct number. Plz install surge protector, time delay unit between eskom supply and invertors preventing is better than cure. Call for advise even if ure not in Johannesburg.
August 16, 2025Aug 16 Yes those mosfets definitely are blown on that unit i have got the same problem on a unit that just came in for repair in my shop
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