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Hot end fan self test issue  

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RevivalEngineeringNZ
(@revivalengineeringnz)
Member
Hot end fan self test issue

Hi all, new to prusa printers and community. 

 

I have a mk2.5s that keeps failing self test at the hotend fan test.

Ive checked the wiring and tried another fan.  

Its wired up with a two wire fan direct to the board as per the wiring diagram. 

Ive done a reset and flashed the firmware.

I can get the printer to calibrate and do the first layer and print, the fan runs. I get the message saying the printer has not been calibrated.

I have to skip past it and turn off the fan test to get the printer running. 

What am i missing?

The printer was previously fine until i tried to run the calibration wizard. Any help much appreciated.

Thanks, Tim.

Napsal : 01/07/2023 9:09 am
Jirka
(@jirka-4)
Member
RE: Hot end fan self test issue

I have exactly the same problem. Only with hot end termistor. Chek all. Plug in rambo have 5v termistor react on change. Flush firmvare. Still self test error.

Napsal : 18/11/2023 5:51 am
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