Welding machine issues are the last thing any welder wants. Unfortunately, even the big names like Miller Multimatic 255 have issues.
The Multimatic 255 is amazing but users do face some issues with it. Motherboard acting up, weak internal wiring, and being voltage sensitive are some of the major issues.
Welding machines are like lifelines for welders. And since it’s a pretty big purchase decision, it is better to be aware of the possible issues. So here are some pretty common issues Multimatic 25 users face.
Issues With The Miller Multimatic 255 Welder
Here’s the thing, no machine you’ll use is going to be perfect. There will always be room for improvement. But some problems go beyond that.
The Multimatic 255 issues on this list are kind of like that. Most of these are manufacturing problems.
That means you really can’t pin the whole thing on one person. Well, issues are issues, and here are the Multimatic 255 ones you should know about.
- Main Board Gets Separated Easily
You’d think this is a wear-and-tear problem.
Unfortunately, it isn’t. This can happen in your brand-new welding machine too.
It usually manifests as the machine completely shutting down.
The Multimatic 255 has the main board to connect the machine to power sources.
The board takes the electricity and relays it to all necessary connections and circuits.
There is a conductive layer behind the board which helps it do this.
The problem is, the conductive layer can get separated sometimes. It bends and rises up from the base layer. This creates a gap between the board and the conductive layer and causes the machine to show signs of power issues.
If your Multimatic 255 outright refuses to power up suddenly, chances are the conductive layer is peeling off.
Also Read: Problems With ESAB Rebel 205 Welder.
- Internal Wiring Disconnecting
Okay, this is more of a factory issue but this does happen. Some people would even say this happens more recently. Wiring issues usually happen to brand-new Multimatic 255s.
This is another problem that manifests as power issues. Most people report their Multimatic 255 running okay but suddenly not starting the next day.
On top of that, there are no telltale signs that will signal you the wire issues. You’ll have to take it to the mechanic for a proper diagnosis.
This problem is usually caused by weak internal wirings. If the motor wire feed (or the motor controlling part) has a weakly connected wire, then it can get worse during usage and just snap later.
You don’t even have to use your Multimatic much. If you’re unlucky, one use will do the nasty trick.
- Voltage Sensitivity
This is seen more in newer machines.
Usually, the Multimatic adjusts itself after a while but the first few times are enough to make it an issue.
Sometimes our power sources can supply a slightly more or slightly less electricity stream than the standard. Most electric components adjust with this minimal change.
But the newer Multimatic 255 can be a problem because of how voltage-sensitive it is.
The Multimatic 255 may not power up because of the small difference. You’ll always have to supply the exact amount of power it needs.
This usually gets fixed with time but poking around with the brand-new machine is, well, something.
Is the Multimatic 255 Welder Worth It?
Well, now you know the potential issue. But the Multimatic 255 is more than that. Plus whether you face issues will also depend on your luck.
So what about the 255 in general? If you put the issues away, would it be worth it?
The answer is yes. The Miller Multimatic series is full of some of the best multipurpose welding machines you’ll see. And the 255 model is one of the top ones.
This is as close as you’ll get to a true multipurpose welding machine.
The Multimatic 255 is durable, long-lasting, and comes with a bunch of amazing features. It can do MIG, pulsed MIG, DC stick, and DC TIG. That’s pretty much everything you’ll need.
It, unfortunately, can’t do AC TIG (or stick). But most people working with DC TIG don’t need them in the first place.
The user interface in this is pretty awesome. It’s easy to understand and operate. The UI comes with 4 programming options.
They let you save your common work settings.
That means you can already have the settings pre-saved and save some tuning time.
There’s also the automatic setting. The automatic option lets the machine decide the best work setting.
This is based on your fuel, wire type, and diameter.
Multimatic 255 is also pretty easy to clean and operate. Unless you’re seriously unlucky, the Multimatic 255 lasts for a pretty long time down the road too.
And on top of that, it is covered by Miller warranty. So you don’t have to lose much sleep over possible machine troubles.
Is the Multimatic 255 worth it? Very much yes. For the price tag, you won’t find anything better or more convenient. So if you want to give the 255 a shot, feel free to.
Also Read: PrimeWeld TIG225X Complaints.
Frequently Asked Questions (FAQ)
Here are a bunch of questions people usually ask about Miller’s Multimatic 255 in general.
First, turn on the system screen. One of the 4 program buttons will have a reset tag on it. Press that button. Your machine will reset and return to the home screen.
Without a doubt, yes. They’re high-quality, have multiple options, give great output and come at a reasonable price tag. So yes, Miller welders are worth the money.
Millermatic is like Multimatic but with a better range. It has all the OG Multimatic welding processes but it also offers some extra ones. And the price is different for both.
Miller 255 is rated as 175 amps at 60% duty cycle.
Final Verdict
Issues happen, and Miller welding machines aren’t above them. The Multimatic 255 is a great welding machine, but it can also come with some issues. Hopefully this Miller Multimatic 255 problems rundown gave you a little idea about how they can be.
If you want to give this machine a shot, make sure you’re prepared for the potential issues.
