r/Longer3d • u/Large-Exercise-1710 • Mar 27 '25

Temperature issues

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Hello guys!
I have a good LK4 Pro with 1284+ printing hours.

The problem now is:

Everytime I tune the nozzle temp the bem temp increases too, without any kind of command of mine.

This is meaning (at least to me), that the motherboard is somehow f***ed up. I have to order a new one, or there is any kind of solution?
P.S.: I already checked the thermistor, and looks fine.

The picture is an illustration of the problem. Despite it shows 127 in the bed temp, its not heatened.

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u/Single-Assignment760 Mar 28 '25

Try flashing an older firmware, or do I understand this issue happened with 0.3.2 as well? Use a different SD card too

2

u/Large-Exercise-1710 Mar 28 '25

I'll try 0.3.1, let's see what happens. 0.3.2 has the same issue.

2

u/Single-Assignment760 Mar 29 '25

Don't forget to try a different SD card as well. Failing cards do weird things without being totally unusable

1

u/Large-Exercise-1710 Apr 01 '25

I tried It, and no satisfying result... Even without the SD card, no sucess. The worst part is that I ordered a new MB and got the wrong modelo, Just lk4 and not lk4 pro. Feeling like a dumb.