Cooling fan does not rotate.
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@kotuo if all fans not working (PWM & always on) then check if the fuse2 is not blown, or you have the jumper j2 plugged not in the right direction
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@siam
Thank you for your reply.
I'm looking at my Duet2 now.
I've only touched Raspi and Arduino so far, so let me check something rudimentary.
The fuse2 is the fuse in the middle of Duet2 that says "1", is that correct? (Additional note: it is under the fuse marked 7.5)
My fuse 1 is painted black, so I can't visually check if the fuse is blown.
What is the best way to check if the fuse is blown?
Can I use pliers to force it out?
I've also tried connecting the FAN connector the other way around, thinking that the FAN connection might be the other way around, but neither of these have helped. -
@kotuo It's the Fuse with the 1 on top (1 Amp) you can look from the top into this fuse if the connection inside is interrupted then the fuse is blown. Yes you can use a plier to pull it carefully out
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@siam
Thank you for your reply.
Is there anything I need to be careful of when using pliers to pull it out? -
@kotuo normally not only one thing : be sure that you unplug the power before you plug or unplug anything on the board
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@siam
Thank you for your reply.
I disconnected the power cable and tried to pull out the fuse with pliers.
But the top part was damaged and came off, and I could visually see inside.
The fuse was blown. -
DO NOT REVERSE FAN LEADS !!!!
When you do this you have a 50/50 chance of blowing up something. Either the fan or the Duet can be damaged by doing this (but you can luck out).
It's an easy thing to do (I have done this myself) but for everyone reading this thread this is a reminder to not do that.The always on fan headers make a convenient test point and that connection is fused . The other fan connectors are fused too but the fuse is not fast enough to protect the output mosfet.
So, plug the non working fan into the always on output confirms that there is power and that the fan works. If it doesn't run try a different fan. If different fan is also dead than look for power issues such as the fuse.
If fan runs on always on connection, you have either a config issue or the mosfet on your controlled fan output is blown.
(I did not go through your config) -
@kotuo said in Cooling fan does not rotate.:
Thank you for your reply.
I disconnected the power cable and tried to pull out the fuse with pliers.
But the top part was damaged and came off, and I could visually see inside.
The fuse was blown.In this case You need a new Micro Fuse with 1 Amp. But before you insert This Fuse check all cables it is Possible that you have a short circuit or a wrong connected fan.
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I received a new fuse and replaced it, and the fan is now working.
Thank you very much for your help. -
@kotuo, you lucked out
