Miguel Posted March 6, 2022 Share Posted March 6, 2022 Hello everyone, I'm looking for some guidance regarding my 48V split (110/220ac) U-Power 15k inverter. Recently I had to replace all the mosfets boards and the driver. The inverter was able to power a fridge for two days with no issue but then it started to overload (red LED) and alarm. Now when I try to power a light bulb it lights up for a few seconds and then it turns off. I also noticed that only the mosboards and the driver LEDs are turning on green. I don't understand how the inverter drives and lights up a lamp bulb for a few seconds with most of the green status LEDs being off. This inverter came with the following board dates and revisions: LF Power source board = 2017-9-9 Rev 4.0 (LED blinks) LF Neu CPU board = 2017-9-28 Rev 1.1 (LED off) LF-overload protection board = 2017-3-27 Rev 3.71 (LED off) LF-3K/5K/8K signal board = 2017-5-3 Rev 3.72 (LED off) LF-3K/5K/8K I/C board = 2017-5-3 Rev 3.72 (LED off) LF-3K/5K/8K AC Charger board = 2017-8-30 Rev 3.72 (LED off) LF-Driver = 2017-9-9 Rev 4.0 (new and LED on) LF 3K_MOSBoard = 2014/10/27 Version 2.2 (4 new an all LED on) LF-3K_MainBoard = 2016/5/4 Version 2.6 DRV2/GO2 What recommendations you can share with me to fix this issue? Are replacement parts still available like to replace the boards specially the power source board or any other that could cause these symptoms? Best Regards, Miguel firstname.lastname@example.org Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.