baldharry

Thank you for the link, added it to my bookmarks. I seem to have that BZG03-C10, but it is physically bigger so maybe it could be the SS10100FL. Have to order it.

Hi all, First, a big thank you for this interesting thread! I have a lot to learn from it. Looking at the picture (please expand the quotation first) which was quoted from wael_fathe I have a 2.4kW inverter/charger (PS 3KVA, Courtois Energy) with a mobo very similar to this one. It has an interesting problem, input voltage is ALWAYS 37 volts, from battery/mains/PV. At first glance there was a 2.2 ohm resistor R31 burned open in the bottom right corner, just like wael_fathe had in his. As soon as I replace the R31 2.2 ohm resistor the inverter won't power on but instead heats the resistor till it burns up. Once it's burned open, the inverter powers on and shows the input having 37 volts. Close to the zener marked with a red rectangle is a diode D2, with smd marking G10. That one has failed on the bottom side of the mobo. It's connected to the topside burning 2.2 ohm resistor R31 and D2 diode. I've looked everywhere to find a replacement diode but haven't found one. Any idea what diode it is and maybe a suggestion for an equivalent? Thanks in advance and sorry for hijacking this thread with an irrelevant inverter model.