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Bill Lugg
(@bill-lugg)
Eminent Member
Buzzing fan at startup

I've noticed that the Noctua(?) fan, the one that sits at an angle in front of the print head, on my Original Prusa i3 MK3S has been making a nasty buzzing sound when I first turn it on for about two or three seconds.  When I start to print and it finally comes on, it sounds fine...until today when it started buzzing for a little bit and then quieted down.

Is this normal behavior or should I be seeking a replacement?

FWIW, prints seem to be coming out OK, but they won't if the fan fails.

 

Thanks

Bill Lugg

Bill Lugg

Opublikowany : 02/05/2020 10:07 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Buzzing fan at startup

Hi Bill, 
the liklihood is that the bearings are wearing out. 
you could try peeling the label off the hub, and putting a couple of drops of oil into the bearing, then wipe the surface clean, and put the sticker back again. 

regards Joan. 
Probably also worth ordering a replacement for when you need it!

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 03/05/2020 1:07 am
Ty polubić
Bill Lugg
(@bill-lugg)
Eminent Member
Topic starter answered:
RE: Buzzing fan at startup

The printer is only about 5 months old and hasn't run a full kg of filament through it yet.  So, I think it might be a case of infant mortality then.

 

Thanks for the input.

Bill Lugg

Bill Lugg

Opublikowany : 03/05/2020 3:48 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Buzzing fan at startup

Have a word with Prusa Chat, 
the fans should last quite a while. it if is infant mortality then they will replace the part! 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 03/05/2020 9:33 am
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