June 10, 20233 yr This is a 24v axpert inverter with an error 56, testing with a laboratory account and batteries, the error is persistent, the reading on the voltage display is incorrect, marking 1.4v and it goes up and down randomly. Could it be the voltage sensor? apparently nothing burned inside not even a burning smell. I'm open to suggestions to save it from the garbage
June 11, 20233 yr My guess would be a cracked battery voltage sense resistor, in the area indicated below or perhaps under that white block. Either the resistor body is cracked, or the metallised ends have detached from the resistor body, or the solder joint has cracked. I assume that the white block is some sort of rubbery substance to somewhat support the middle of the main board.
June 11, 20233 yr Author Thank you very much for answering, I was looking at a post of yours from some time ago where you schematized that chain of resistors in a similar problem. I have done readings and the 1004 resistors give readings of 1 megaomnh except for the one under that rubbery block, I am going to replace the resistor now and try, I will give you answers in a while. thank you very much for leading the way
June 11, 20233 yr Author that something so small can cause too much catastrophe. If you ever come to Spain, I have a duty to invite you to a big lunch. very grateful for your generosity
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