Broken Tap Settings

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Hi. I have an ESAB 250 Migmaster Mig welder and the tap settings are not working well. Often I have to finagle the dial in between a setting in order to make the welder conduct. Once set, it will continue to work fine so long as I don't need to change settings. I resolved to fix this the other day and opened the machine up. 6 lines (for the 6 settings) bolted to what appeared to be a sealed unit that houses the "taps". Is this something where I can open the unit up and adjust things, or to fix this problem do I simply contact ESAB and buy a new tap setting unit? Thanks for any advice.
Reply:Can you spray the switch with contact cleaner?  With it un plugged.Dan
Reply:A friend brought in a tap switch unit from an Esab 250.The switches were part of a small circuit board.His son had tried to fix them but they were really too fragile to be in a welder.I spent some time looking for a new board and found Esab wanted 700 bucks for a new unit.The welder was German made.I hope your welder is different.Those switches should not have been made as part of a circuit board.
Reply:Originally Posted by farmer37A friend brought in a tap switch unit from an Esab 250.The switches were part of a small circuit board.His son had tried to fix them but they were really too fragile to be in a welder.I spent some time looking for a new board and found Esab wanted 700 bucks for a new unit.The welder was German made.I hope your welder is different.Those switches should not have been made as part of a circuit board.
Reply:Pull it and send it to ESAB. They'll fix you up.Obviously, call first.Welding & Cutting Equipment P.O. Box 100545 411 South Ebenezer Rd. Florence, SC 29501-0545 Phone: (843)-669-4411 Fax: (843)-664-4258Bubble gumTooth pixDuct tapeBlack glueGBMF hammerScrew gun --bad battery (see above)