Hi guys,
I recently picked up a super old UniMig 240 Procraft off my uncle for free. It's the black unit with the large adjusting knob in the middle, 2 earth plugs at the bottom and the 2 small wire feed and stitch knobs at the top. It also has the analogue Amp meter at the top.
He had it sitting under shelter but rain still managed to get a few sprinkle of rain here and there. However the inside still looks ok. The problem I'm having with the welder is that it powers up fine. When I press the trigger the wire feed works but it seems to get stuck pretty easily. When I press the trigger and go to lay a bead there is no spark and I can't hear the gas solenoid clicking / opening.
I visually checked the diodes in the rectifier and all seems to look ok. The contactor doesn't seem to be engaging when the trigger is pressed. I measured voltate at A1 and A2 terminals of the contactor when the trigger is pressed and it read 0V.
Do you think my problem is the circuit board ?
Thanks guys. Hope to resolve this issue!
Steve T
I recently picked up a super old UniMig 240 Procraft off my uncle for free. It's the black unit with the large adjusting knob in the middle, 2 earth plugs at the bottom and the 2 small wire feed and stitch knobs at the top. It also has the analogue Amp meter at the top.
He had it sitting under shelter but rain still managed to get a few sprinkle of rain here and there. However the inside still looks ok. The problem I'm having with the welder is that it powers up fine. When I press the trigger the wire feed works but it seems to get stuck pretty easily. When I press the trigger and go to lay a bead there is no spark and I can't hear the gas solenoid clicking / opening.
I visually checked the diodes in the rectifier and all seems to look ok. The contactor doesn't seem to be engaging when the trigger is pressed. I measured voltate at A1 and A2 terminals of the contactor when the trigger is pressed and it read 0V.
Do you think my problem is the circuit board ?
Thanks guys. Hope to resolve this issue!
Steve T