A10M temp Sensor heatbed shows >146/0

[Jui272]

Hi
On friday 12.10.2018 8 got. my new A10m. At First everything seams Great.
My First Prints get to easy off during print.
Thun i realize that the bed isn‘t heating and shows 146 to 0 at start of Printer.
For the extruder the tempreture is 25 to 0 at Start up.

Please help

Best regards
Jui

[aarli]

Extruder: 25 is the current temperature. 0 is desired temperature (which means that you haven't initiated heating)
But hotbeds temperature sensor seems to be not working at all. 146 is kind of an unreal temperature

[Jui272]

Hi

Extruder temp is current 25. it is room temp.
I only Switch on the Printer.

I Print the dog from so card without heatbed Heat.

Thanks
Jui

[aarli]

So it's the heated bed issue then? Well... Still the same testing procedure applies. If thermistor signal doesn't measure 100kOhm at room temperature, trace the signals and try to find where it disconnects.

[Jui272]

Thanks

But i am no familar with meassuring. I saw a Post werde it was discript but the pictures didnot fit for my A10M.
Do you have a link where a picture of a A10M Board with hint where the meassure Point are.

Best regards
Jui

[aarli]

https://github.com/Geeetech3D/Diagram?files=1

[Jui272]

Hi

I recive a Message from geeetech support, it Shows my board and the Position of heatbed cable connection.
I am on vacasion so i Remote the heatbed connector and start the A10M.
But it shows Not 0. but 146.

So it is the mainbord.

Any ideas?

Best regards
Jui