Part cooling fat goes to 100% "randomly"
checked wiring, c hecked setup wizard, its on EBB43 digital pwm on 2pin port
33 Replies
so when you power on the printer it goes to 100%. Does it turn off at all ever?
not always
thats the confusing part
but when its at 100% and i turn power off
and turn it back on its coming back with 100%
but the web interface of the printer always shows it at 0% correct? trying to make sure there is not something in the software trying to turn it on, not sure what that would be though
its "Fan" am i right?
the one i can slide from 0-100
yes
yep its always 0
when i slide it, nothing happens
put it to 100% now
nothing
when its at 100% the fan is still running right?
?
dont understand
you said the fan comes back at 100% when you power cycled the printer
yeah
sometimes
so I assume the fan is running but the slider does not make any changes
is it possible that the pwm signal contact is bad?
what I am curious on is if you can get it so the fan cycles off and then try the slider to see if it comes on.
the board delivers voltage but the pwm isnt controlling it
?
how does your fan behave? does it spin up when u use the slider?
the fan will be off if it is getting a PWM signal to be off. If it is not getting a PWM signal it will run at 100%. So if the fan is off I suspect it is getting its PWM signal which means the slider should work to turn it on
yes
hmm
I have my tach pin wired up so mine shows RPM but thats not part of the documentation so you can ignore it
ill rattle a bit on the connector , lets see what happens
nothing happened
but when i sit back down it went to 100% for 2 seconds
that printer is cursed
when you say it went to 100% for 2 seconds you mean the slider or the fan itself
the fan itself
slider did nothing
I would go back through the instructions again for the fan and make sure its wired correctly. specifically the pwm pin.
the blue pin is on the top pin of the 2nd 2 pin jst port correct?
or first depending on which way you are looking at it 🙂
yeah found the error
the white crimp became loose... makes 100% sense now
will fix it tomorrow... im tired and done for today...
but thanks alot for assisting me ! :ratrig_heart:
no problem! have a good night
Final statement... i removed the crimped molex and soldered the wires... much cleaner and reliable now 😉 and the most important thing of all - it works !
Nice work!
Any issues since soldering the wires?
nope, its just soldering 2 wires together. just dont forgett to apply some shrink tube before u solder them together 😉
I had the same thing just now. I think an good upgrade is to use the EBB42 with a PWM 2V 4028, rather than powering it from the control board