Hey guys what's up glad to be part of your site, So I just bought a 250AMP Solar arc welder No.2250 MODLE 110-088 from a friend for $50 bucks and he told it worked and I trust him enough to believe it worked. When I got home my brother hooked up a 220 outlet and plugged it in and it didn't work so he straight wired it to the double pull breaker and it still didn't work. I assumed there would be a reset or fuse in the back so I took it apart, no reset or fuses. I don't see anything that looks burnt up, I did find a wire that wasn't hooked up. It's one of the twofan wires. There is a red and a blue wire coming from fan motor. The blue wire qasnt hooked to anything. The red wire is hooked to a black 3 wire box/splitter. The 2 black power wires coming from the back of the on/off power switch go into the top in slots 1 and 3 and 3 wires come out of the bottom, the red fan wire was in the bottom of this black splitter in slot 1 (or 3 depending on how you look at it as it's not really numbered, there just 3 slots) and I don't know where to hook the blue wire? I can't find anything so far. I'm sure the blue should be a ground and the fan should be 110V so if the black splitter is for power the blue would not go to either on or the other 2 spots, can anyone help please?
dstig1
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You sure you have power at the outlet first? I'd get my multi-meter and start probing a few key points for presence of voltage. Might not solve it, but you should at least know a bit more about the situation. Nobody is realistically going to know the wiring of this Chinese unit. You could look for a wiring diagram inside the case or manual. Or see if you can get lucky with the manufacturer/seller website or email request it.
California
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Ditto.
Check for voltage at each point - breaker box, outlet, cord where it enters the welder, at and beyond the welder's on/off switch.
Per this ancient thread on another site, Century made a Model 110-088.
Century Mfg. 250 Amp Welder
Long time lurker, first time poster. I'm just trying to find out some more information on this welder I have. It's been sitting in my dad's garage since 1996, never been welded with. I've only started it up to test it and it does work. I'm wanting to sell it, but I can't seem to find much...
weldingweb.com
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Thanks guys, so like I said my brother hooked it up and he did check the connections and there was power up to the back of the welder. I'm not sure if he checked the switch but I tore it down and the inside wasn't in the best of shape I'm cleaning all the connections and I'm going to see what that does for it. As far as the wires go I watched a few videos and the black wires going to the on/off switch are both power and there is no natural or ground. I was reading a forem on another site and this guy was having the same problem but i didnt get to see how or if he got it fixed. He had a welder with 2 hots and no natural. He put a ned plug on to match his outlet and when he pluged it in it wouldnt come on and its the same with mine. Anyway ill put it back together today and see what happens but without a place to hook up the natural wire on the inside of the welder i dont know what to hook the wire to, the junction box on the back of the welder like you would with 110v ??? I really appreciate the help.
WranglerX
Super Member
Generally most 240 volt welders don't have a neutral, they have a L1 and L2 (120 volts on each Line) and usually a safety ground to chassis..... Some early welder bonded the neutral to chassis as a "Ground" so it may depend on what era in which welder was made as to how it was wired....
TGD
Bronze Member
If I remember correctly, the fan is 240 volt and hooked to the power switch Red on one side Blue on the other side. The welders came with a 50 amp plug which was 2 hot blades and a center ground pin. (like a old style 3 prong dryer plug). The machine does not use 120v and so would not have a neutral.
It's a real basic machine so there shouldn't be much wrong with it that's not obvious by looking. Burnt smell/windings burned/bad power switch.
Once you connect the fan up to the power switch properly and plug it in and turn it on the fan should run. If it does not make sure you have the proper voltage (240) on both sides of the main power switch. Maybe it is bad and needs replacing.
The machine may also be a 208 and 230 volt welder. If so, there would be a terminal strip with either a jumper strap or a wire to move to select the proper voltage for the transformer primary. This connection may be somewhat hidden behind a cover so you might see if there is such a connection on your machine and check if it is connected for the proper voltage. There may be some instructions somewhere inside the machine showing how to connect.
The squeeze handle or rotating wheel handle mechanically moves the shunt in and out of the transformer core to change the current.
This diagram should give you a very general basic idea of what you are looking at and how it is wired.
It's a real basic machine so there shouldn't be much wrong with it that's not obvious by looking. Burnt smell/windings burned/bad power switch.
Once you connect the fan up to the power switch properly and plug it in and turn it on the fan should run. If it does not make sure you have the proper voltage (240) on both sides of the main power switch. Maybe it is bad and needs replacing.
The machine may also be a 208 and 230 volt welder. If so, there would be a terminal strip with either a jumper strap or a wire to move to select the proper voltage for the transformer primary. This connection may be somewhat hidden behind a cover so you might see if there is such a connection on your machine and check if it is connected for the proper voltage. There may be some instructions somewhere inside the machine showing how to connect.
The squeeze handle or rotating wheel handle mechanically moves the shunt in and out of the transformer core to change the current.
This diagram should give you a very general basic idea of what you are looking at and how it is wired.