Sid Genetry Solar Posted October 17, 2022 Share Posted October 17, 2022 36 minutes ago, JSG said: Am I able to get my parts thru you guys? Unfortunately not...Sean is no longer doing PJ repairs, and as such does not have access to parts. (And even when he did, any repairs had to be handled through PJ.) If we produced our own "spare parts", they would not be complementary, as otherwise we'd go broke trying to keep PJ inverters running! 1 hour ago, JSG said: One pic is the control board, the one has a banged up crystal on it, but you can see the discoloration on the FET. The other one beside it, is a new one. Gets hot fast on that same fet. Banged up crystal? Which FET on the control board are you referring to? 34 minutes ago, JSG said: With the negative side disconnected, the board closest to the fan lights up, the other one does not. I am at 24v. This indicates a hardware issue. I would suggest: removing and checking that particular MOS board that doesn't light up, verify it's good with a diode check. (LED should light up with a DMM in diode check mode if you measure positive from a FET heatsink and negative to any of the non-gate screw terminals. Remove it from the inverter first!) If the MOS board IS good, then there's a hardware fault somewhere on the mainboard--OR it could be a miswired ribbon cable (if this inverter's never run before). Try unplugging the rainbow ribbon cable from the control board and see if the LED comes back on. if this is the case, that would explain why the LF Driver board gets so hot--however, I would expect a very hot chip to be a very damaged chip. Quote Link to comment Share on other sites More sharing options...
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