1 Topic by NicoleJS (edited by NicoleJS 2021-08-25 04:21:18)

  • NicoleJS
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Topic: Extruder thermistor fried?

I flashed my Da Vincy 1.0 (the new model) to repetier 0.92 long ago. Everything was woking fine until I got a "heater decoupled mid-print in a 24 hour print.
The heater works fine, yet my extruder thermistor shows only 7°C after start. Turning the heater on doesn't change anything, yet the extruder gets hot pretty fast and my fan starts. Download ringtones free
After some minutes, I get a heater decoupled error and the extruder is shutting down.
Is  my thermistor fried?
I got a NTC3950 lying around. is ther any thermistor table matching? How to change the thermistor table?

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2 Reply by carl_m1968

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Re: Extruder thermistor fried?

Unless you switch to Repetitive firmware you cannot alter the thermostat table.  You might want to take a close look at the thermostat and make sure it's wires near the hot end  are not exposed and touching each other or touching the metal body of the heat block. Also look for broken wires. Do not ever use the brass brush on the sides of the heat block or when power is applied to the heater.

Printing since 2009 and still love it!
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3 Reply by loncaric

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Re: Extruder thermistor fried?

carl_m1968 wrote:

Do not ever use the brass brush on the sides of the heat block or when power is applied to the heater.


Yes.  What he said.  This results in disaster.  I...heard it...from a friend.