Hi everyone, I was seeing the same F56 error on our 5kW Deye Inverter. I solved the problem by adjusting the Discharge charge setting from 10A to 15A. Whenever my aircon's compressor kicked in, the discharge current ramped up from 7A to 11A, which tripped the Inverter's Load output. Output restored, then a few minutes later it tripped again. After adjusting the Max A Discharge in the "Battery Setting" Menu, this doesn't happen anymore.