H3AT_VeGaS

Hey guys, I’m hoping someone here can help me out because this is driving me insane. I’ve got a Kodak OG 5.48 inverter with one Pylontech UP5000 battery (connected via RS485) and six panels. The system works, but it just won’t stop switching between grid and battery over and over. Here’s what happens: It runs on battery until it hits around 48V, then switches to grid. Almost immediately after that, the voltage jumps back up to 50–51V, so the inverter switches back to battery. A minute or two later it drops again, and the cycle repeats. It’s basically going click-click-click between grid and battery all night. My current settings: Battery type: Pylon Mode: SBU Cut-off: 45V Back to grid: 48V (won’t let me go lower) Back to discharge: FULL (tried 50V too) Float/Bulk: 53.2V Max charge current: 25A Max AC charge: 30A The battery charges fine and gets to 100%, no error codes, everything “works” — but this flipping is ridiculous. Has anyone else with this combo had the same issue? Is there any way to stop it from constantly switching? I’m guessing it’s something to do with the Pylon BMS overriding things, but I can’t be sure. Any ideas would be appreciated. Thanks, Alex

Hi all, We’ve just moved into a house with a Kodak OG 5.48 inverter (VMIII) and a Pylontech UP5000 battery. A few nights ago, I simulated loadshedding to test the setup. With just the fridge and a few lights on, the battery only lasted about 2 hours before everything shut down. That felt too short, so I started digging. I reached out to AI for guidance and checked some inverter settings. I briefly switched Menu 05 from PYL → USE → back to PYL, and also adjusted Menu 12/13 voltages (then reverted). Since then, the system is still on PYL mode, but I keep getting Error 69 (battery comms failure) after a while. The battery shows no ALM light and seems to charge/discharge, but the comms drops. I also noticed the inverter’s Bluetooth doesn’t show up on my phone at all, so I can’t connect with the app. Right now the system runs, but it’s unstable and I’m not confident it’s set up properly. Has anyone had this issue? Could it be: • A dodgy comms cable (using Port B, Port A is taped off)? • A firmware mismatch between inverter and battery? • Something else in the settings I need to roll back? Would really appreciate any guidance from the community. Thanks!