Roller Error?
I've been getting a lot of “Error: Roller” messages on the machine screen. Typically If I hit the button to resume the knitting it keeps going. Does anyone know what this error means?
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Christine The error usually means that the knitting is coming out of the machine unevenly because the yarn end has been left in the clamp or for some other reason. If the yarn isn't in the clamp, the error can be cleared by pausing the machine and giving the knitting a tug on the short side.
It could also mean that a piece of yarn or other debris is interfering with the roller. This happened to me soon after I got my machine. I hadn't completely removed a swatch. A piece of yarn broke off and eventually got twisted around the rod that supports the roller. I found the yarn by using a mirror to view the roller from below (with door open so machine wouldn't operate). The yarn almost looked like a piece of lint. After I found the yarn I realized I could also see it from above. I ended up removing the yarn from above with a pair of tweezers after running the roller in reverse (Roll -1 cm). It hasn't happened since, so this is probably rare.
If the light in the room gets very low, I'll also get a roll error. I guess because the roller has a light sensor? Turning the room light on clears the error!
The indicator lights are to the left of the yarn clamp. I believe a light is either red or flashes red if you haven't cleared the error.
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Thanks @OJ!
I will check for stuck yarns. It may also be the light issue? The lights in the machine room are motion activated, so it can sometimes get dark in the middle of a knit.
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I am also having a roller error, maybe someone can help me find the cause…
I got my machine this week, assembled it, applied oil as the startup guide instructed, and then proceeded to run the warmup program that came in the SD card. All went well until line 261, when the roller error appeared:
I checked the manual and this forum post, went around with a flashlight trying to convince the machine to resume the program, tried to look into the gap between the needle beds and the rollers with mirrors and cameras, and saw nothing that could be causing problems.
There is also no knitted work to pull on, as the warmup program is run without yarn and at that point the test swatch that comes with the machine had already been released.
I even managed to thread dental floss between the rollers to try to remove any potential invisible debris or yarn. Here is a photo for amusement purposes (I guess we all need it at some point when dealing with machine errors):
I also tried to find the indicator lights left of the yarn clamp, but didn't see anything. That worries me a bit, because if there are no lights, I shouldn't be operating the machine, and I suspect that it would mean that the sensors and/or the lights are not working. I searched a bit and found a different set of undocumented lights on the left side of the fabric collection slot, so maybe these are the roller indicator lights of my kniterate model:
If that is the case, I do not know what the problem is, as they are all green. If these are not the roller status lights, what are they?
After several more attempts of turning the machine off and on, I managed to convince the machine to shift the carriage back to the left (it was stuck on the right hand side) by pointing the flashlight into the fabric collection slot. It briefly made the roller error disappear and reappear, and so the carriage slowly made its way to the left a few seconds at a time with each press of the button.What should I try next?
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Thanks Ana Barroso for the detailed feedback!
It could be that the ambient light of your space somehow triggers the roller sensor. This can be fixed by adjusting its sensitivity with the two potentiometers circled below:
When the error is triggered, use a small Phillips screwdriver and slowly rotate those screws (the potentiometers of the sensors) until you click and the error goes away. There are two screws, one for each sensor (front and back roller). The screw in the front goes for the sensors in the back, and the screw in the back goes for the sensor in the front (apologies about that; we need to ask the sensor manufacturer to flip this logic…). Do this slowly, one screw at a time.
Rotate CW: more sensitivity.
Rotate CCW: less sensitivity.
You want the roller to be as sensitive as possible, but without giving you false positives, so it can detect if a bit of yarn goes the wrong way.
Please give it a try and let me know if you have any questions. Thank you!
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Hello Gerard, it worked! Thank you very much, the machine is running again.
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