Extruder gets to 100C and gives Heating Failed Error

Discussion in 'Build Help' started by Chase.Wichert, Mar 3, 2016.

  1. Mike Kelly

    Mike Kelly Volunteer

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    That's annoying for sure. Should read about 108ohms at ambient.

    Did you try swapping the connectors for 1 and 2?
     
  2. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Well both hotends do the same thing..
     
  3. Mike Kelly

    Mike Kelly Volunteer

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    Both hot ends only heat up to 100 then shuts off? This seems more like a wiring issue then
     
  4. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Well they don't quite get to 100 seems like really around 95C. Maybe I can do a google hangout tonight to hopefully get some help
     
  5. Mike Kelly

    Mike Kelly Volunteer

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    That would be best. Hopefully the solution is something obvious that we're missing.
     
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  6. Chase.Wichert

    Chase.Wichert Well-Known Member

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    I'll do a hangout in 5 hours when I get home.
     
  7. Chase.Wichert

    Chase.Wichert Well-Known Member

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  8. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Okay, so when I put a thermocouple on it, the temperature readout is accurate. And it was 105ohms at 18C....
     
  9. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Okay so, I just measured the amp draw for the hot end and it is 1.33 amps... Is that good, or not good?
     
  10. Chase.Wichert

    Chase.Wichert Well-Known Member

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  11. Chase.Wichert

    Chase.Wichert Well-Known Member

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  12. Chase.Wichert

    Chase.Wichert Well-Known Member

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    you are a genius
     
  13. Mike Kelly

    Mike Kelly Volunteer

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    "A person who has never made a mistake, is someone who has never tried anything new"
     
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  14. Kanedias

    Kanedias Well-Known Member

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    What was the solution?
     
  15. Chase.Wichert

    Chase.Wichert Well-Known Member

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    So, I DID put the hotends together wrong. I screwed in the long steel piece into the heater block as far as it can go before I screwed in the nozzle. This allowed the heat sink to come into contact with heater block, so the heat sink was cooling the heater block faster than the heater could heat up. So note to self, when assembling the hotend, screw the nozzle in first, THEN screw the other threaded piece that the heat sink screws onto.
     
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