Fans don't turn on/work
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I have the fan connections for both of the fans located on the hotend to the fan 0 and fan 1 while I have the electronics box fan on the always-on connection. Should I move the one fan connection for the hotend to the always on and switch the one I have attached on the always on to the connection in the fan 1 port.
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Are you saying the always on fan connection works?
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What I am saying is that I have the fan that sits above the electronics plugged into the always-on port while the fans for the hotend and the part cooling fan are attached to fan 0 and fan 1 ports. Also question how do you expect me to be able to check the continuity of the fuse for the fans when I can't even get to it. considering the way the board is arranged with the fan connectors butt up against it and then another fuse right behind it.
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@Asabol said in Fans don't turn on/work:
Also question how do you expect me to be able to check the continuity of the fuse for the fans when I can't even get to it.
Well you'll have to get to it, with all the disassembly that entails.
But I also gave a test you can do with just the fan port pins to see if they are getting voltage. If they are, then the fan fuse is intact.
Does the electronics fan turn on?
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I checked the connections the other way that you said to do. It reads that there is current going through the always-on fans. I plugged the fan that is supposed to turn on when it is over 45c to the always-on fan connector. Should I know turn my printer own and turn the hotend temperature to increment over 45c to see if it will start spinning? Thank you for your generous support especially considering I'm still new to the duet community.
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Fixed it. I had a bad crimp connection on the positive wire and my cables were backward in the connectors. Sorry for having you go through the run-around but it was very helpful and I am very appreciative.
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Hey no problem. Glad it's all working out. We're here to help. The best part of this hobby is learning something new.
Post again if you have any other questions.
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Quick one for you. I'm not sure if you or anyone else has dealt with the stock part cooling fan found on the ender 3. But can someone tell me which one is positive and which one is negative considering it is a yellow and blue wire compared to the normal red and black?
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You bet, there's an entire guide on the Ender 3 you may like.
In my case, the part cooling fan has the yellow (+) and blue (-) wires, and the hot end heatsink fan has unterminated bare red (+) and black (-) wires, and the case fan has a terminated red (+) and black (-) wires.
https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+1:+Wiring/37#s114
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Great thanks.
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After last time posting that I had fixed the fans I have had work for a single print. The fans now do not want to turn on which is becoming frustrating because I have tried everything I did the first time and nothing has worked. Is there anyone out there that could help?
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Also the wifi module wont turn on when the printer is turned on. I am not sure if this is related to another fix I did just do on the printer which was I had to recrimp the wires for the x and y axis stepper motors.
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So the fans were working but now do not?
What else did you change?
Is there a blue LED lit on the wifi module? Does it blink at power on?
If you connect USB terminal, can you send M552 and report the response?
Also send M122 and report the response. -
@Phaedrux Before the fans stopped working the WiFi module would blink when turned on but now they don’t.
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I also think I had uploaded the wrong file for the config file because I had changed some stuff and I wanted to go back to the way I had it. So if I upload the correct files for the config then also do the things you said to do I think I can get the printer to operational again.
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This is the response from the printer for what you asked me to type in.
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Ok, send M552 S1 to re-enable the wifi module.
What is in your config.g now?
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I had accidentally uploaded the wrong package for the config file then I uploaded the correct one for the printer. Question now that I have most of the things back into working order. Why does my thermostatically controlled fan not turn on when I have the hotend above 45C.
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Also since I pushed the correct package for the config, the wifi turns on when I turn the printer on.
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@Asabol said in Fans don't turn on/work:
Why does my thermostatically controlled fan not turn on when I have the hotend above 45C.
That will depend on which fan port it's plugged into and what your M106 fan config looks like. If you tell me that I might be able to tell you why it's not turning on. And if the configuration checks out good, there is a chance there is damaged mosfet or fan, but we'll cross that bridge when we get to it.
