Hi, I have a Lincoln square wave 255 tig set, it has an intermittent problem on the control panel, when turned on it beeps and button control wont work, when any button is pressed it will just beep and not make adjustment, this is on all buttons, it still welds etc, I have found that if I slap the panel with hand sometimes I can get it to work but then it returns to beeps and not work, any ideas? Ps it’s a touch button panel.
thanks
Rich
thanks
Rich