Problem with my cooling fan

[Meowboy]

Hi,

I have a big problem with my filament cooling fan in my geeetech A10 with GT2560 Rev B.
The fan is still running and does not stop.
I can change the speed with the M106 or M107 command.
I have check the voltage on the fan and I have 24v.
It's stop running only when i turn off the printer, but when i put on the fan running up to 100%.

I test an eeprom recover, i reflash marlin.

Have you a solution ? or i must change my motherboard ?
Otherwise my printer still works.

[Newls]

I've got an A10M and the two side extruder fans are always on at 100 regardless of speed. From why i can see the fan speed only applies to the central extruder fan which cools the extruded plastic.

My plan is to replace them with quieter fans.

[Meowboy]

I speak about the fan wich cools the plastic.

[Tomyuan]

Hi,Newls
The cooling fan for the throat isn't the PWM fan type.
(If you replace it to the PWM fa. It won't work because of the board not have the PWM pin for these parts )

[Newls]

I'm going to replace the throat fans with quiter ones. Now pwm type just simple fans to try and make the printer a little quite.
I'm not sure if the ones I've bought will have enough flow though.
Anyone know what the Cfm is for the stock 3010 fans on the a10m

[Nickedw]

Did you resolve this? Ive fitted a three wire blower fan to the PWM socket and I have speed control from about 50% to 100% but it won't go off, anyone know how to fix this? is it the wrong type of fan? firmware? software? settings? I have the GT2560 board and an i3 pro A ali, much modified.

[Nickedw]

Thanks for the reply, but I’m still not clear what you’re saying?

1. So is it as simple as updating the stock firmware to enable PWM support?
2. It is a parts fan
3. OK, useful to know, but not what I’m doing
4. Understand, so do what? move to marlin 2 (I see you have) although the i3 pro a doesn’t seem to be supported on the face of it either?

Sorry if I’m not getting your point here, but what is the path of least resistance to make this work, or are you just saying it won’t work?

Regards,

Nick