Geeetech

Well,

I run this morning my printer (workin with Mecreator2),

i cant be able to know why the nozzle feedback temperature sensor still stay at 0 degree
even if the command to set this temperature work... (setted with repetier or directly on lcd give the same)
could it be a sensor (electronic) problem ?
could it be because i dont have filament pulled in ?

--> i need to change the filament and a bad surprise that i cant be able to know if the nozzle work (put finger on the nozzle and it doesn't seem to be hot)

the bed command and feedback temperature seems OK.

note, when i used last time (2 days ago) i let filament to be ended inside it ... maybe cause of problem ?

By the way, where can i find good - easy to understand instruction to unmount physical part and to check electronic part ?
Is it normal that the nozzle temperature stay at 0 when there is not filament inside even after a commande temperature setted?

Thanks

You mean you got "0/0" for extruder when you turned on your printer?
If so,i guess it is a bad connection on the wiring(check the back of your printer),you can unplug it and replug.