Hey guys!
At our in-house 3D Printlab @3D Hubs, we have a couple of printers to experiment with. However our Ultimaker 2 only worked the first two weeks when I started my internship at 3D Hubs. I took the challenge to figure out what the problem was and see if I could get it fixed. By doing so I gained some useful tips I’d like to share with you.
‘’ERROR - STOPPED Temp sensor BED’’
It basically all started with this error. First by unplugging and plugging in the sensor of the heated bed (Temp3) it was solving the problem and the UM2 was running again for a while. Unfortunately not for long.
I came across this UM forum post giving some insights in what might cause the problem:
- The wires are loose or broken
- Cold solder joints at the heated bed
- The heated bed is broken
- The PCB connection is broken
Most likely #1 the wires could be the problem as plugging in and out Temp3 first resulted in fixing the problem.
So I checked the wires and cleaned them up although it resulted in the same error message. A useful guide for How-to-assembly-your-UM2 can be found here.
As you can see in the picture the solder joints on the heated bed do not look that good and re-soldering to prevent cold joints was also not fixing the problem.
The same error kept appearing again and again…
One tip I got after contacting Ultimaker to see if the heated bed is broken is the following:
Switch Temp1 with Temp3 on the PCB. This way you let the printer think that the sensor in the bed is now in the head and vise versa. If the sensor is broken the error will change to:
‘’Error - Stopped temp sensor’’. If the error stays the same, then the mainboard is broken and needs replacement.
In our case the error switched and this indicated that the heated bed needed to be replaced.
The new ordered heated bed arrived very quickly! Yay!
And guess what:
It is working again!!
I’m now only waiting for another part to make it run more smoothly and we can start printing awesome models and keep on experimenting with crazy filaments!
Hold your breaths: printing updates will be coming soon!
>>One more thing: 1 of the cooling fans at the top has a mind of its own and starts only working when it feels like it (very seldom). Any tips on fixing this problem are welcome!
For now:
Cheers,
Mercedes
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Nov '15last reply
Dec '15- 3
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