November 10, 20232 yr Hi, My Inverter suddenly stopped working, It’s being doing this a few times but after switching off inverter and battery it would reset after a while It has now been 2 days and won’t start up It starts up when I disconnect the display (ribbon plug) The LED’s Are connected showing all clear The heat at the top is untouchable It looks like 2 electrolytics are swollen and transitor very very hot 1000 microfarad 16V I haven’t stripped to check components Does anybody have similar faults
November 10, 20232 yr 46 minutes ago, Francois Venter said: Hi, My Inverter suddenly stopped working, It’s being doing this a few times but after switching off inverter and battery it would reset after a while It has now been 2 days and won’t start up It starts up when I disconnect the display (ribbon plug) The LED’s Are connected showing all clear The heat at the top is untouchable It looks like 2 electrolytics are swollen and transitor very very hot 1000 microfarad 16V I haven’t stripped to check components Does anybody have similar faults For starters that component is a 12V voltage regulator and they normally push through the full supply voltage when they pop. Some heat also on its pins. This then caused some caps to pop. After this repair one can check again.
November 10, 20232 yr 33 minutes ago, Scorp007 said: For starters that component is a 12V voltage regulator and they normally push through the full supply voltage when they pop. Some heat also on its pins. This then caused some caps to pop. After this repair one can check again. This failure been well documented in the "repair of Axperts : a Journey Started'. The excessive heat on the 7912 heatsink is probably due to the SG3525 PWM 16 pin DIL IC running hot.
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