Hi, Thanks for the reply, yes the temperate of the nozzle is around 23c (room temperature) and never increases past that. I have check the heater wires and they are correct inserted into (HEATER 1) on the main board. I have also stripped the insulation on the end of the wires incase there was a bad connection - but this hasn't fixed the issue.
I assume the wires can be inserted into the holes of HEATER 1 in any order?
Could the heater be faulty? Could I use the heater cable from my old UM2 extruder or are these different on the UM2+?
Thanks,
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gr5 2,224
It's almost surely the heater. Did the nozzle temperature increase a little before getting the error? Does it read 20C when you start? These are crucial pieces of info.
If it does not read around 20C (room temperature) before you start heating then it's most likely the temp sensor.
But much more likely it's the heater. The temp sensor will just sit there at 20C even though you asked the bed to heat up to say 40C or hotter.
You may have inserted the heater wiring into the wrong holes or not thoroughly. Give them a gentle pull and see if the wires come out. You might also want to try stripping a little insulation of the end of the wires of the heater.
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