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Brand new mk3 kit: fan error front fan does not spin!  

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Nessuno0505
(@nessuno0505)
Trusted Member
Brand new mk3 kit: fan error front fan does not spin!

My first 3d printer, just completed the assembly yesterday. Today updated with the latest firmware, then run wizard.
Result: front fan error! The front fan does not spin. All is ok with the lateral noctua fan that works flawlessly.
The fan is properly connected to the mainboard; I've disassembled the extruder bundle of cables and the rear part of the extruder, in order to check the wire integrity: no visible breaks, but still the fan does not spin.

Some pictures attached:

Can it be a broken fan? A broken mainboard?? What can I do now?

Opublikowany : 07/10/2018 3:16 pm
Nessuno0505
(@nessuno0505)
Trusted Member
Topic starter answered:
Re: Brand new mk3 kit: fan error front fan does not spin!

Update: the fan does not spin even if just attached to the board:

Now one of the two:

1. The fan is broken (but all the wires seem to be ok, there are no pinches and they seem to be properly attached both to the plug and to the fan side). Maybe a defective fan from origin?

2. The defect is in the mainboard. But the printers starts, the firmware update was ok, the other fan spins.

What can I do now? How can I contact support? Is it possible to have a second front fan to try? And what if this is a motherboard issue?

Opublikowany : 07/10/2018 4:12 pm
Nessuno0505
(@nessuno0505)
Trusted Member
Topic starter answered:
Re: Brand new mk3 kit: fan error front fan does not spin!

Problem identified!

If I invert the fan cables on the mainboard, the ex-front print fan still does not spin, while the noctua fan can spin even if connected to the wrong front fan plug. So the problem is the fan, not the mainboard.

I need a new one. Is it covered by warranty? I do not find any pinch in the wire or broken connection, so I'm not sure if I can fix it by myself.
Can someone tell me what to do now and how, please?

Maybe silly questions but I'm a complete noob, my first 3d printer. Thanks.

Opublikowany : 07/10/2018 4:55 pm
Mustrum Ridcully
(@mustrum-ridcully-2)
Honorable Member
Re: Brand new mk3 kit: fan error front fan does not spin!

log in to the shop page where you ordered your kit https://shop.prusa3d.com/en/17-3d-printers
and use the live chat feature... this isf the mustard yellow box in the lower right corner of the store window.

Prusa's live chat support is some of the best I have encountered on the web

Opublikowany : 07/10/2018 5:29 pm
Nessuno0505
(@nessuno0505)
Trusted Member
Topic starter answered:
Re: Brand new mk3 kit: fan error front fan does not spin!

Thanks I'll try!

Opublikowany : 07/10/2018 6:14 pm
Nessuno0505
(@nessuno0505)
Trusted Member
Topic starter answered:
Re: Brand new mk3 kit: fan error front fan does not spin!

I've explained my issues on the online support, as suggested.
Very quick and very kind, they've decided to give me a free fan with my next order, so I ordered some pla and they put a fan in the box.
I'm waiting for delivery, but really good support.
In the meanwhile (since a new fan is coming and I've got nothing to loose) I opened the malfunctioning fan and disassembled it, tested again after reassembly (with the help of a bit of glue) and I don't know why but now the fan spins!
I can say this problem is solved, thanks to everyone. 😉

Opublikowany : 08/10/2018 10:01 pm
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