welder problems

My welder crapt out on me today.It was working perfect,i was welding along and finished one side of my frame,i went to the other side i did some tacks and when i went to start to weld all i get is a very small arch,i checked my ground,same thing.Has anyone had any problems like this.The welder is a Lincoln 180 HD mig..I checked voltage to the machine and had 230 volts,i double checked ground and still same problem.Could it be a circuit board..

 

I have an sp185. if you need me to check anything on mine for troubleshooting it for you let me know.
Mario

 

Thanks Mario,i just found all of my paper work and i bought it last october,so i think it's still under warranty.At least i hope so.I think there is a 2 year warranty on it.Before i open it i will check on it tomorrow..

 

Check the connections on the trigger mine came loose and did the same thing you are describing.