Hey guys, first post here. A couple of weeks ago we had a pretty bad thunderstorm where I live. Lightning apparently struck either my house (I live in a metal pole barn) or somewhere near my house. It took out my DSL modem, a DirecTV receiver, and the HDMI input on the TV the receiver was hooked to.
The day before I had been working on a project on my rockcrawler in the garage and had left my Millermatic 251 plugged in but powered off when I finished for the day. When I found the damage to my electronics in the house I never thought about checking my welder. A few days later I went back out to work on the project some more and when I turned my welder on it powered up like normal and the voltage and wire speed displays still showed just what I had left them at. I got everything set up and ready to make the weld I needed, pulled the trigger and nothing happened. No wire feed, no gas solenoid clicking, nothing. I powered the welder off and took the gun apart and checked continuity on the trigger when it was pulled, the trigger is good. I powered the welder back on and had 35 VDC to the trigger. I checked voltage on the other side of the trigger with it pulled and it dropped to 28 VDC. I also unplugged the gun from the front of the welder and jumpered the pins on the welder side of plug and it still does nothing.
I'm leaning toward a board issue, but looking for other input. I took the cover off the side of the machine and just looking at the board I didn't see any obvious burnt spots. Due to work schedule I haven't had a chance to really look it over good though. I'm hoping you guys may have some troubleshooting tips and ideas.
Thanks!
Ben
The day before I had been working on a project on my rockcrawler in the garage and had left my Millermatic 251 plugged in but powered off when I finished for the day. When I found the damage to my electronics in the house I never thought about checking my welder. A few days later I went back out to work on the project some more and when I turned my welder on it powered up like normal and the voltage and wire speed displays still showed just what I had left them at. I got everything set up and ready to make the weld I needed, pulled the trigger and nothing happened. No wire feed, no gas solenoid clicking, nothing. I powered the welder off and took the gun apart and checked continuity on the trigger when it was pulled, the trigger is good. I powered the welder back on and had 35 VDC to the trigger. I checked voltage on the other side of the trigger with it pulled and it dropped to 28 VDC. I also unplugged the gun from the front of the welder and jumpered the pins on the welder side of plug and it still does nothing.
I'm leaning toward a board issue, but looking for other input. I took the cover off the side of the machine and just looking at the board I didn't see any obvious burnt spots. Due to work schedule I haven't had a chance to really look it over good though. I'm hoping you guys may have some troubleshooting tips and ideas.
Thanks!
Ben
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