Lincoln electric ac/dc arc welder model ac/dc

Your '84234' looks like a serial number. There are manuals here.

Century Tool

Model 110-114 230 Amp AC 140 Amp DC Arc Welder Owners ...

www.centurytool.net > 110-114-manual

This Operators manual provides specific welder information for the Model 110-114 230 Amp AC 140 AMP DC Arc Welder. This manual contains information ... US$8.00 · ‎In stock
https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk030_aoMP1EEx6RQMEs3tnAGapt7hg%3A1608153070115&ei=7nfaX5usBuSt5NoPgMqrgA8&q=century+230+amp+ac+welder+manual

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This is not a simple question. Take this magnificent machine to a service shop.

Check the dial indicator. Sometimes if someone changes the amps while welding, there will be a break in the coil. It will work at a different setting as long as you are away from the break.

maybe its your volts too. make sure you are grounded properly and clean from debri's, strike the electrode like a match and keep the arc close to your work-piece. dont go too fast and make sure your not wearing to strong of a lens in your hood. gold lens number 10 are the best for 7018 rods.

According to the specs for this welder

You need a 50 amp breaker and #6 wire

Century/Lincoln Inverter Arc 230 DC stick welder.

• 230 Volt stick welder compatible with optional TIG equipment. Welds 18ga to 5/16. Includes:
• 10 ft Work cable with small dins connector and clamp,
• 10 ft Electrode holder with small dins connector,
• shoulder strap for portability,
• 6-1/2 ft input cable with attached 50 Amp (NEMA 6-50P) plug

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Hi:

Since you did not mention here brand or model of welder; I'm pretty sure that your machine it's an AC/DC machine, the series of slotted plates means that the machine will output 50 amps in AC or 80 on DC. 60 in AC or 125 in DC.
If you want to work with lowest amps available, just put the selector on AC and connect your cables to the 50/80 amp side.
You should have a selector lever to switch back and forth from AC to DC in front of the unit.

Hope this work for you.

Buyer beware. Contact the manufacturer and replace the needed parts.

Replace the power board

www.millerwelds.com › Products › TIG -
www.millerwelds.com › Service & Support

sounds like you lost one leg of power to the unit,check power source and the the plug on the welder.