I got stuck, troubleshooting my
#BTT #BigTreeTech #Octopus 1.1 mainboard, installed in newly assembled
#RatRig #V-core #3Dprinter, running
#RatOS aka
#Klipper.
Both
#nozzle (
#extruder) #heater and
#hotbed one do not warm up. Beyond all doubt (using external power sources and hairdryer) I confirmed that both thermistors, heaters and wiring are ok.
Under warranty, RatRig sent me replacement board, which I configured, flashed with updated firmware and got the same error. I also tried to redirect the nozzle heater power to another pin (see in the config file at
lib.tepewu.pl/f/8f1d29fe05d44c…) where I hooked up the multimeter. Nothing happened, when I set up nozzle temp to 50*C - after timeout I had the same error "extruder is not heating fast enough", thus klipper shutdown.
I cannot believe to have such a bad luck to got two boards with the same hardware fault (especially that steppers and hotbed probe work perfectly), so it is something I do not know - and I run out of ideas.
Please, somebody suggest something new. Hjalp.