Yep I just swapped the heater connections on the main board, and the controller quite
happily heats up the #2 heater cartridge - so the board is ok.
The TC`s on both hotends are also fine.
I dont know much about typical failure modes of heater cartridges, if this can be caused by
the board giving voltage spikes or switching on/off too frequently or suchlike.
But looks like just a failed heater cartridge. Just strange to me that it "kind of" worked for
a fair while then just stopped. When it did work it was totally ok...then just BAM...off.
I suppose I will have to order a new one at some unbelievable price :shock: and try it again....
I did have to jiggle the wiring around alot when I installed the 2nd hotend. Perhaps it was
all too much for the heater cartridge wiring...
C.
EDIT:
Yep thought so....32 Euros PLUS tax....for a 40w 18V heater unit....similar
parts typically being sold everywhere else for about 400% less than that.
HELLO UMAKER !!!! NO FRIENDS ARE MADE BY SHAMELESS MARKUPS
Anyone sucessfully using an alternative for these ?
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gr5 2,295
Well it's obvious to me at least that there is nothing wrong with your temp sensor but something wrong with your heater cable. This is easier to debug and trace than temp sensor. When it starts drifting down, check the voltage under the UM to see if the relay is broken or if it's the wiring. Also jiggle the wiring under the board and along the path to the nozzle heater.
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