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· UM2 Side fans always on, centre fan always off.
Better late than never, I suppose?
Sometimes questions begs more questions, and this is one of those times, I'm afraid.
It's a straight UM2, not a 2+? Regardless, it would be best if you check which main board version you have. It'll say so in the silk screen on the component side of the PCB.
Assuming it's a 2.1.1 and the printer is alive at least (you can make it do things), the hot end fan problem cannot be located on the board, as the 2.1.1 supplies constant +5V directly from the onboard power supply to the fan (except if we're talking copper / connector problems). If the fan isn't running and the problem is on the board, the entire printer would be dead as a hammer. Since you've replaced the hot end fan itself, I'm going to go ahead and assume there's a problem with the fan extender cable in the loom to the head.
The model fans, on the other hand, is extremely likely to be board failure. Regardless of board revision, they're PWM controlled. I'll bet you just about anything that T1 is shorted collector-emitter. Thankfully, if you're handy with a soldering iron or know someone who is, you can get spare transistors thrown at you everywhere. It's a BC817. As you can see, they're certainly affordable enough and stock is never a problem.
/mike
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Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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SyntaxTerror 344
Better late than never, I suppose?
Sometimes questions begs more questions, and this is one of those times, I'm afraid.
It's a straight UM2, not a 2+? Regardless, it would be best if you check which main board version you have. It'll say so in the silk screen on the component side of the PCB.
Assuming it's a 2.1.1 and the printer is alive at least (you can make it do things), the hot end fan problem cannot be located on the board, as the 2.1.1 supplies constant +5V directly from the onboard power supply to the fan (except if we're talking copper / connector problems). If the fan isn't running and the problem is on the board, the entire printer would be dead as a hammer. Since you've replaced the hot end fan itself, I'm going to go ahead and assume there's a problem with the fan extender cable in the loom to the head.
The model fans, on the other hand, is extremely likely to be board failure. Regardless of board revision, they're PWM controlled. I'll bet you just about anything that T1 is shorted collector-emitter. Thankfully, if you're handy with a soldering iron or know someone who is, you can get spare transistors thrown at you everywhere. It's a BC817. As you can see, they're certainly affordable enough and stock is never a problem.
/mike
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