Fan RPM Test Fail  

RE: Fan RPM Test Fail

J'ai le même problème.

J'ai envoyé un  mail à ce sujet au service après-vente et j'attends la réponse...

Je la publierai sur le forum lorsqu'elle me parviendra.

I have the same issue.

I sent an email about this to after-sales service and I'm waiting for a response...

I will post it on the forum when it reaches me.

RE: Fan RPM Test Fail

I will post it on the forum when it reaches me.

Hi RGB

Have you received any reply from them on this yet?

RE: Fan RPM Test Fail

Had the exact problem after flashing to 5.1.2 and used the chat support. The solution was to loosen the single screw that secures the printing fan cover. Loosen or even remove it completely so that the test passes. Once the test passes, you may secure the screw again. Support said that it is a known issue that will be addressed in a subsequent firmware update. 

RE: Fan RPM Test Fail

Thank you for your input. The fan actually comes on but it does not see speed is this still related to what you are talking about?

RE: Fan RPM Test Fail

Yes it is. I was puzzled as well because all I did was update the firmware. If you’re doubtful, hit the chat support and see what they say. 

RE: Fan RPM Test Fail

I thank you for the help. Makes me feel a bit better. It does seem like the same time I updated the software. I've actually been sitting on hold in the live chat with them for the last hour and its been stuck on queues are around 6 minutes for the past 30 minutes HAHAHA. I am printing now and watching in Prusa Connect and it is actually recording print fan speed, so you have to be correct. I guess its not a problem it just tries to make you finish testing before each print but you can cancel out of that so I will just keep going.   

Thanks again for the update. 

RE: Fan RPM Test Fail

Hi Rufus, Hi REIFY 3D,

Voici la réponse que j'ai reçue mardi du SAV PRUSA

Here is the response I received on Tuesday from PRUSA after-sales service

Hello Robert.

I am sorry about the issue that occurred to you. If everything is running correctly, it appears as a small bug in a FW. It may also happen that it will pass after a few attempts. If the print starts and continues without any given error, you can keep on printing, it should be all ok.

Thank you for the report, I will pass it on.If anything occurs, don't hesitate to reach out to us again!

Kind regards,

—Zuzana UngerováCustomer supportPRUSA Research  |  Partyzánská 188/7a | 17000  Prague  | 00420 222 263 718 | 00421 220 570 305 | 00420 226 258 861

RE: Fan RPM Test Fail

Hello Rufus,

I had the same problem. After the new firmware update, I did a speed test of the fans again and I couldn't get the speed of one fan (I repeated the test 5 times). It sounds strange, but during the last test I took the extruder out of the dock and simply blew into the fan during the speed test to support it. It took quite a long time and I almost ran out of air, but I was successful and apparently got the required speed and passed the test.

I'll keep my fingers crossed for you

RE: Fan RPM Test Fail

Well you were correct. I loosened the fan housing and for some strange reason it passed BUT now the filament sensor is failing. Unbelievable. All I did was to loosen the fan housing on the opposite side of the head. I have also noticed that this has crashed a few times since this new software install. Anyone else see these issues??