Heating failed

Hello everyone

I am building a 3D Printer

every time I try to print, The extruder does not heating up "stays at room temperature" , while the heatbed heating up, but after 10 minutes an error appears

Error:Heating failed, system stopped! Heater_ID: bed
[ERROR] Error:Heating failed, system stopped! Heater_ID: bed

Error: Printer halted. kill() called!
[ERROR] Error: Printer halted. kill() called!

Using MK2A heated pcb bed (200x200)

when I turn on the bed and extruder from the software, the extruder reaches the temperature that i need, while the bed keep heating up until that the same error appears "after around 10 min"

Edited 1 time(s). Last edit at 10/25/2019 05:46PM by 3bdelli.

Any ideas ??

Quote
3bdelli
Any ideas ??

Yes! but no concrete ones.


I would Start with the Hot-end Thermister, measure at the connector end using an ohm meter at room temp and again place under a hair dryer measure.
Post resistances, this will let us know if the thermister is changing resistance or if it is dead/shorted.

The hot-bed could need to be auto tuned.

Edited 1 time(s). Last edit at 10/26/2019 03:16PM by Roberts_Clif.

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Computer Programmer / Electronics Technician