Flash to 3.3.1 and now I get "Preheat the nozzle!" as soon as printer is turned on
 
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Flash to 3.3.1 and now I get "Preheat the nozzle!" as soon as printer is turned on  

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Sonny
(@sonny)
New Member
Flash to 3.3.1 and now I get "Preheat the nozzle!" as soon as printer is turned on

I didn't immediately get this error after flashing.

After flashing the firmware, I always rerun the calibration wizard. I powered it up, heated the nozzle, and removed the filament. After it cooled down I started the wizard. The first few times it would get to the nozzle fan test and give the error. Now it immediately gives the error on power up.

I swapped the heatbed and hot end leads on the board; same error. I connect a brand new, never used E3D thermistor sensor--just the thermistor; same error. I completely disconnected the lead, leaving the socket open; same error. I flashed back to 3.3.0, Slic3rPE said it was successful, same error. I flashed up to 3.3.1; same error.

Help...

Posted : 19/07/2018 4:41 am
Sonny
(@sonny)
New Member
Topic starter answered:
Re: Flash to 3.3.1 and now I get "Preheat the nozzle!" as soon as printer is turned on

I think I solved the issue. I powered the system down, waited a couple seconds, powered it on and as soon as I saw "Original Prusa i3 MK3," I immediately click "Flash!" It made it up all the way up checking the filament sensor and then failed. I'll call that a win.

Posted : 19/07/2018 5:19 am
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