I fried my Bimax 132 a couple of days ago, the wirefeeder is dead. The torch is fine, it reads 20.8 volts and zero when I press the trigger, but when I measure the motor that controlls the wire feeder there's no voltage at all. The relay (finder 40.61 0301) on the pcb has some rust on it an some humidity inside, and there's no mechanical movement inside when I press the trigger. One side reads ~230V AC and the other side reads zero, until I press the trigger. The voltage then spikes to about 27V (regardless of variable resistor (for wirespeed) position) and slowly drops to zero again at about 0.1V every 0.5 seconds.
I made a couple of pictures with some clarification here and there. Can anyone help me diagnose this problem?
This is the front of the welder
Rear of the welder
Better look of the pcb at the front of the welder
I made a couple of pictures with some clarification here and there. Can anyone help me diagnose this problem?
This is the front of the welder
Rear of the welder
Better look of the pcb at the front of the welder