jmlcolorado
Well-known member
Any circuit board builders out there?
I need some help on a ........ Kinda ashamed to say .......... Harbor freight welder.
Anyone who knows these welders knows there is a potentiometer for wire speed then 2 switches to select voltage.
1 switch marked Max-Min and the second marked 1-2 for a total of 4 different voltage settings.
I while back the wire feed motor stopped working n half the settings, then suddenly started working again.
Tonight, it started to stop working again. I can hit the trigger and hear the rely switching but the wire feed doesn't work.
I tested the motor and it's not getting voltage when the trigger is pressed.
This board is really simple compared to some, but I know darn close to nothing when it comes to electrical work unless it has wires
It has a few capasitors, 8 or so resisters, a relay, a fuse (which is good) a pot, transformer, somet white box with a lead on each end and marked 5w, and a few other things I can't identify. (might be able to identify after looking online some ).
Can I test resistors and the pot with a multimeter? I assume I'll need to know what the resistance is supposed to be for each one to learn weather or not one is bad.
On the solder side of the board, all the solder joints look okay. Every one going to the transformer is discolored, but not burnt or melted.
I really cant afford a new welder, like literally do not have any money for one
I can take some detailed photos of the circuit board if that helps any.
I need some help on a ........ Kinda ashamed to say .......... Harbor freight welder.
Anyone who knows these welders knows there is a potentiometer for wire speed then 2 switches to select voltage.
1 switch marked Max-Min and the second marked 1-2 for a total of 4 different voltage settings.
I while back the wire feed motor stopped working n half the settings, then suddenly started working again.
Tonight, it started to stop working again. I can hit the trigger and hear the rely switching but the wire feed doesn't work.
I tested the motor and it's not getting voltage when the trigger is pressed.
This board is really simple compared to some, but I know darn close to nothing when it comes to electrical work unless it has wires
It has a few capasitors, 8 or so resisters, a relay, a fuse (which is good) a pot, transformer, somet white box with a lead on each end and marked 5w, and a few other things I can't identify. (might be able to identify after looking online some ).
Can I test resistors and the pot with a multimeter? I assume I'll need to know what the resistance is supposed to be for each one to learn weather or not one is bad.
On the solder side of the board, all the solder joints look okay. Every one going to the transformer is discolored, but not burnt or melted.
I really cant afford a new welder, like literally do not have any money for one
I can take some detailed photos of the circuit board if that helps any.