Duet Wifi strange error : Heater fault

[blulaserstar]

update i have tryed to set 170 as active or standbye temperature, and it work, so I set 180, 190...220 and it work but if i write 230, the H2 go off

[dc42]

@blulaserstar said in Duet Wifi strange error : Heater fault:

update i have tryed to set 170 as active or standbye temperature, and it work, so I set 180, 190...220 and it work but if i write 230, the H2 go off

What exactly happens when you try to set 230C: does it start heating but then give you a heating fault? Or does it refuse to heat at all? If it refuses to heat at all, check your M143 H2 temperature limit setting.

[blulaserstar]

you are right, i'm sorry, i haven't see that the m143 h2 was 230!
But nothing the printer stop at 9 minuts!!!

I have tryed to do auto tuning at 270° and save with m500 but at 9 minuts stop:
Cancelled printing file sgianpolrotato.gcode, print time was 0h 9m
Error: Shutting down due to un-cleared heater fault after 600 seconds

now i don't really know what can i do!

[dc42]

Do you have a M501 command near the end of config.g, so that it runs config-override.g which is where M500 stores the heater tuning results?

[blulaserstar]

yes I have it and keeps giving the same error after 9 minutes

[dc42]

Might you be getting a heater fault right at the start of the print? I suggest you start a print and then look very carefully at status of all heaters reported by DWC.

[blulaserstar]

i have look verry verry carefully the DWC here is a screen video me i don't see nothing of strange
Screen capture video

[Dougal1957]

@blulaserstar in that video it clearly shows that you have heater faults on Tool0 and the Bed heater they both read 2000C which is normally a open circuit thermistor on those heater you need to either disable them or correct them I bet you are actually getting the print stop at 9:59 secs.

[blulaserstar]

@Dougal1957 nooooooo you aren't say me that the bed heater disconnect make this error????

I don't believe! How do you suggest to disable? by comment the firmware, on config.g?

[Dougal1957]

@blulaserstar you can comment out the lines in Config.g but the best way is to fix the thermistors on both the bed and the Tool ) as they are both in error.

[blulaserstar]

@dougal1957 i know, but for the moment and for the future i don't want to use the bed and the second extruder! so i prefer to disable a moment in the firmware. On december i think that i'll try to activate the bed and the second extruder.

[Dougal1957]

@blulaserstar so comment out the M305 and M143 lines for Ho and H1 should sort you out.

[blulaserstar]

@dougal1957 ok really really thanks. I have done:

but i always have the fault problem on the bed!!!!

[wilriker]

@blulaserstar Use

M140 H-1                       ; Disable heated bed

to disable the heated bed. Also you have to comment out the line starting with M563 P0 that defines your tool 0. Also probably the lines starting with G10 P0 but they should be close to the M563 line.

[blulaserstar]

@wilriker said in Duet Wifi strange error : Heater fault:

M140 H-1 ; Disable heated bed

YEAHHHHH it work she aliveeeeee. Fantastic.
Thank you all for the support you gave me, you were very kind and very prompt. Finally everything works properly and I have also understood the logic that generated the error.

Thank you