JSG Posted October 14, 2022 Share Posted October 14, 2022 (edited) Well, my inverter got shorted out. I believe both 110 sides hit the neutral together. Blew MOSFETs apart, and driver board. Have replaced both, but nothing. Only one side of the MOSFET boards light up, and the driver board gets hot enough to dis-color fairly quickly. With the driver removed, still only lights up one side of the MOSFET boards, but nothing getting hot. I believe the converter board has been smokes, but it looks ok. Would anyone happen to have any insights on where to go next? Thank you. Edited October 14, 2022 by JSG Quote Link to comment Share on other sites More sharing options...
NotMario Posted October 14, 2022 Share Posted October 14, 2022 (edited) Hmm, shorted out is all? Edited October 14, 2022 by NotMario Quote Link to comment Share on other sites More sharing options...
JSG Posted October 14, 2022 Author Share Posted October 14, 2022 Yes. That is what I am told Quote Link to comment Share on other sites More sharing options...
dickson Posted October 14, 2022 Share Posted October 14, 2022 Well, my inverter got shorted out. I believe both 110 sides hit the neutral together DO you mean grid charging input and inverter output is on at the same time ? Quote Link to comment Share on other sites More sharing options...
JSG Posted October 14, 2022 Author Share Posted October 14, 2022 (edited) That's what I believe happened to mine. Both 110 hit the neutral. MOSFET boards and driver board are replaced, only one side of the MOSFETs boards light green, and the new driver board gets hot fast. Edited October 14, 2022 by JSG Quote Link to comment Share on other sites More sharing options...
dickson Posted October 14, 2022 Share Posted October 14, 2022 That's what I believe happened to mine. NOT good seeing the FETs exploded . The heat will destroy your converter board or rev 11.3 control board needed from Powerjack . The copper trace on the mainboard may be crack or burned also . Check the mainboard for black spots . Complete mainboard with mosboard and cap is about 200 dollars . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 14, 2022 Share Posted October 14, 2022 2 hours ago, JSG said: MOSFET boards and driver board are replaced, only one side of the MOSFETs boards light green, and the new driver board gets hot fast. 2 questions: Do all FET boards light green if the driver board is removed? What part(s) on the driver board gets hot? 1 Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 14, 2022 Share Posted October 14, 2022 make that 3 questions, haha 😉 I am assuming the driver board heats up when the power switch is turned on. Does the control board light up as usual? Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 14, 2022 Share Posted October 14, 2022 (edited) 13 hours ago, dickson said: Well, my inverter got shorted out. I believe both 110 sides hit the neutral together DO you mean grid charging input and inverter output is on at the same time ? I'm trying to understand how it shorted. This is an AMG version? You were using the universal AC output? Was it jumpered wrong? L1 and L2 are "110V", so you use separate neutral terminals in the 110 mode. In the 220 mode you jumper the neutrals and use the together. Edited October 14, 2022 by RobertM Quote Link to comment Share on other sites More sharing options...
dickson Posted October 14, 2022 Share Posted October 14, 2022 This is an AMG version? You were using the universal AC output? Was it jumpered wrong? I was thinking he was charging the battery with inverter grid 110v input and then switch the inverter on output 110v at the same time . There should be no grid power coming to inverter output terminal but grid power can come to the inverter input to charge the battery and the inverter output is shut off . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 14, 2022 Share Posted October 14, 2022 12 minutes ago, dickson said: There should be no grid power coming to inverter output terminal but grid power can come to the inverter input to charge the battery and the inverter output is shut off This is not electrically possible. If the AC input is being utilized for charge, there WILL be AC output from said AC input. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 14, 2022 Share Posted October 14, 2022 there WILL be AC output from said AC input. The power from the main only go to the input of inverter for charging but power from the main should not go to the inverter output terminal and a transfer switch will prevent grid power going to inverter . There WILL be AC output from the inverter AC input which is the terminal that is charging the battery . I am not sure if this is what happen to his inverter . I do not think he has a transfer switch . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 14, 2022 Share Posted October 14, 2022 40 minutes ago, dickson said: The power from the main only go to the input of inverter for charging but power from the main should not go to the inverter output terminal and a transfer switch will prevent grid power going to inverter . Again, not electrically possible. All the internal relay(s) in LF inverters do, is connect the AC input to the AC output. The AC output is directly connected to the transformer--so you get power pass-thru and the ability to use the same main transformer and same FETs for battery charge functionality. HF inverters are different. But we're talking LF inverters here. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 14, 2022 Share Posted October 14, 2022 Now I am thinking maybe he was not charging the battery . He maybe backfeed the grid power back to the output of the inverter by turning on the main by accident . I do not know what happen . Why one side no LED light ? I do not think all 4 LED will be ON . IS this PJ inverter is where someone say it was working good and then I do not know what happen ? The picture look like he done a lot of work setting it up . Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 15, 2022 Share Posted October 15, 2022 3 hours ago, dickson said: Now I am thinking maybe he was not charging the battery . He maybe backfeed the grid power back to the output of the inverter by turning on the main by accident . I do not know what happen . Why one side no LED light ? I do not think all 4 LED will be ON . IS this PJ inverter is where someone say it was working good and then I do not know what happen ? The picture look like he done a lot of work setting it up . I have a similar inverter, and wish the guy would help us understand how it shorted. Maybe it was user error? 1 Quote Link to comment Share on other sites More sharing options...
JSG Posted October 15, 2022 Author Share Posted October 15, 2022 Mine was user error. Period. Both l1 and l2 hit the N at the same time, yes it was hooked up to charge also. Only one side of the boards light up, with or without the driver board installed. The driver boards one white (not sure what it is) thing gets hot fast, and hot enough to dis-color. Only when you turn it on though. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 15, 2022 Share Posted October 15, 2022 Only one side of the boards light up, with or without the driver board installed. The driver boards one white (not sure what it is) thing gets hot fast, and hot enough to dis-color. Only when you turn it on though . IF the FETs blow up after just replacing all the FETs then the mainboard may be crack or the copper trace burn and the solder shorted . A new rev 11.3 complete mainboard about 200 dollars and rev 11.3 control board 95 dollars will repair your inverter . Parts available from Powerjack in China . I upgrade to rev 11.3 system and works good . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 15, 2022 Share Posted October 15, 2022 1 hour ago, JSG said: Only one side of the boards light up, with or without the driver board installed. Whoa, that's a huge clue...as when the power switch is off, all four MOS board lights should be on. Is it the high side (positive battery heatsink) or low side (transformer wire heatsinks)? Try disconnecting one primary lead of the transformer. This will help you see exactly which quadrant is at fault. Any visible heat damage to the rainbow ribbon cable? 2 hours ago, JSG said: The driver boards one white (not sure what it is) thing gets hot fast, and hot enough to dis-color. Only when you turn it on though. "white things" are TLP350 opto-isolated FET drivers. I'm trying to think how it would get hot when the power switch is turned on--that's really weird. (Probably indicates the driver board is toast though.) Assuming you're at 48v? I have to say, the photo of a driver board early on, showing busted low-side transistor drivers, is somewhat concerning. The PJ driver board is NOT fully isolated--and as such, damage CAN pass upstream to the control board. (I've seen holes blown in the CPU.) Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 15, 2022 Share Posted October 15, 2022 2 hours ago, JSG said: Mine was user error. Period. Both l1 and l2 hit the N at the same time, yes it was hooked up to charge also. Only one side of the boards light up, with or without the driver board installed. The driver boards one white (not sure what it is) thing gets hot fast, and hot enough to dis-color. Only when you turn it on though. Thanks for the clarification. There will be some older PJ inverters listed here for sale soon, but my guess is that you have a newer PJ, and you may not be able to find the newer PJ boards from Genetry Solar. The brand new 6K from Genetry Solar is a good choice. 1 Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 I took a couple pics, to hopefully know for sure what I need. This is the I have been talking about, got shorted out l1+l2 went to N 🤪 I bought it as a return, came all smashed up, but worked great. I also have another sp 8000, but it appears to be an older model, I would like to get it up and going also. But this one first 🤪 And thanks for the help! One pic is the control board, the one has a banged up crystal on it, but you can see the discoloration on the FET. The other one beside it, is a new one. Gets hot fast on that same fet. The MOSFET boards...one side lights up green, the other does not. Does not matter if the driver board is in or not. I do get the green inverter light on, but no output on either sides. If you do not have the driver board in, it will start beeping after just a short time if you turn it on. Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 (edited) On 10/15/2022 at 9:46 AM, Sid Genetry Solar said: Whoa, that's a huge clue...as when the power switch is off, all four MOS board lights should be on. Is it the high side (positive battery heatsink) or low side (transformer wire heatsinks)? Try disconnecting one primary lead of the transformer. This will help you see exactly which quadrant is at fault. Any visible heat damage to the rainbow ribbon cable? "white things" are TLP350 opto-isolated FET drivers. I'm trying to think how it would get hot when the power switch is turned on--that's really weird. (Probably indicates the driver board is toast though.) Assuming you're at 48v? I have to say, the photo of a driver board early on, showing busted low-side transistor drivers, is somewhat concerning. The PJ driver board is NOT fully isolated--and as such, damage CAN pass upstream to the control board. (I've seen holes blown in the CPU.) Sid I just seen this! I will do this today at some point and post the results, thank you!!!! And ALL the MOSFETs boards exploded like that, all 4 of them. Edited October 17, 2022 by JSG Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 (edited) Sid, it is the positive side that lights up. Both boards, negative side, has nothing. Edited October 17, 2022 by JSG Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 No heat damage to the ribbon. Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 Am I able to get my parts thru you guys? Quote Link to comment Share on other sites More sharing options...
JSG Posted October 17, 2022 Author Share Posted October 17, 2022 (edited) With the negative side disconnected, the board closest to the fan lights up, the other one does not. I am at 24v. Edited October 17, 2022 by JSG Quote Link to comment Share on other sites More sharing options...
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