@fcwilt Thank you. That worked. But I almost got a heart attack. I Checked the connection, checked it again, then checked the connection. I flipped the switch and I heard a strange sound! It was just my arm had snagged the curtin and it popped on the rod.

Anyway, it worked. Thank you

@bearer said in Bed heating issue now that I'm on 3.1.1:

you don't even need to temporarily store it in config-override.g, you could just query the paramters an copy that into config.g from the gcode console afaik?
and thats fine when you know what you're doing,...

This is what I am doing, editing the printed parameters into the M307 in my config.g file.

Always wonder why the Duet don't just prints the recommended M307 and planed to ask Duet3d to add it so here it is https://forum.duet3d.com/topic/17958/feature-request-please-have-m303-printing-the-recomanded-m307 . Feel free to support that request 😉

@Phaedrux :
I solved my problem, I add the command M501 at the end of my config.g.

I use in my Duet2WiFi the firmware version 3, RepRapFirmware Configuration Tool v2.1.8.

I made the autotune in the BED and I add the Heater model parameters at the config-override.g.

Now it's working well, thanks for the support.
thank you for your support. I read your previous recommendations on the topic.

Thanks to all for your help.
The anycubic heatbed comes already with with wires attached.
But i'll keep that in mind and check the diameter.