Continua la discussione da HMS_07FF_2000_0002_0004 error:
Good morning. I apologise for my English, which has been translated by a translator, but my mother tongue is Italian. For the past two days, my printer has also been displaying the error hms:07ff-2000-0002-0004. I tried printing using only a filament from outside the AMS system and everything went perfectly, so in my opinion it is not, as described, a case of the filament breaking in the print spool. Tomorrow I’ll try opening the AMS again and carrying out a more thorough clean.
erroro is :HMS_07FE-2000-0002-0004: Please pull the external filament from the left extruder.
But what is left extruder ?
On Dual nozzle machines like the H2D/C or X2D, the Nozzle/Hotend/Extruder which is to the left when looking at it from the front is called the “Left” Nozzle/Hotend/Extruder.
If you have a single nozzle machine, there’s certainly a bug in the error message.
Otherwise, keep in mind that the AMS PTFE path is much longer than from the external spool. So it may be benficial to check and maybe clear the filament path through the left extruder and nozzle.
I’d recommend to remove the external spool filament, unplug the left toolhead PTFE to the print head and use a spare piece of filament (~30-50cm) and then feed that manually all the way to the nozzle before commanding a number of cold pulls.
However, on my H2C, I have come across a number of annoying problem hunts. Started with what looked like heat creep in the nozzle but ended up being a badly fitted PTFE in the AMS2…
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Thanks for the reply.
After reassembling everything, I’m getting that error again. So today I tried running a filament path test, and it gave me the “AMS filament exhausted” error. I basically inserted the filament into the disassembled AMS and noticed that the filament wasn’t reaching the internal hub of the AMS. So I think there are issues with the gears, since they aren’t turning even though I cleaned the entire gear section last night—and the magnets, which weren’t removed anyway.
Mhmm, that.does point to a faulty feed, motor or gear or far too little pre-tension of the spring. In all my AMS slots, I have no chance of moving the filamemt when it is inserted in the feeder.
But before jumping to conclusions, it may be helpful to double check the filament grindmarks and cut off any (potentially) affected sections. If a jam caused filament grinding, the feeder can not grab it properly.
Also, check the PTFE condition and fit in the AMS for the affected path. Simple check but easy to overlook.
If you can tick off those two items, it gets more difficult (feeder replacement if indeed it only affects one path?) and there may be further surprises literally down the line. So use that inspection tume to shorten and straighten the PTFE’s as much as sensibly possible.
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Hi Eno, and sorry for the late reply – I was actually on holiday 
. Today I did as you suggested: I took everything apart, and in my opinion the filament tension was too ‘loose’ – in fact, I could easily move it with my fingers. When tightening the pre-tensioner, I noticed there was some play, so I tried tightening it as far as it would go, applying pressure without causing any breakage. When I tried to pull on it at this point, it wouldn’t move any further, so I had to adjust the motor wheel, noticing from the noise the gears were making that it wasn’t aligned. I tried starting it all up again, but it seems to still have some issues. I need to work out what the problem might be. I’ve noticed that the screw guide is snapped in half; I hope that isn’t the problem, though it seems rather far-fetched.
I fear it very much depends on the screw affected. Depending on the part, a split may easily explain alignment issues.
If it is in the feeder though, it may be easier to replace it.
Is the AMS still under warranty? In Germany, due to EU law, defects within the first 6 months typically fall into the clear claims.
Between 6 and 24 months, it can in theory be more difficult to prove a defect falls under warranty, but companies tend to just send replacement parts if requested.
Key is the date of filing a ticket/notifying the company of a warranty claim.
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Hello, and thank you for your quick reply. Unfortunately, it’s no longer under warranty as I’ve owned the product for more than two years, so the warranty has expired.
I’ll have to buy it even though, after searching various websites, I haven’t found a printable version of the part in question.
Ah, sorry.
I had made the wrong assumption that you had an issue with an AMS2. After over 2 years, there can be quite a bit of wear and tear on an AMS1.
I have 2 AMS1 on my X1. One of them has well over 7000h on it. Fortunately, I have been spared electronic failures to date but I of course had to replace the internal PTFE’s once and the roller guides are starting to give out.
It is probably best to check those as well as the filament feeder path inlets before starting to order parts.
I do hope that it is the expected wear on individual parts rather than something electronic.
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Good morning, after noticing that it was not an extruder problem, as I was printing externally without AMS.
I tried to use it but using only the 3 and the printing was perfectly successful without errors.
I think my problem is one of filament slot …
In my case, it was both wear of the internal PTFE’s and one of the rollers that gave out first. I assume that the filament clip kept my rolls slightly off centre so a quarter of one of the rollers was no longer in existance after 6,000h.
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