Hotend mintemp error #26208 (MK4S) #13208 (MK4) # 27208 (MK…

What happened?

The printer is showing the message "Check the print head thermistor wiring for possible damage."

Error name: Hotend mintemp error

Error code: #26208 (MK4S) #13208 (MK4) # 27208 (MK3.9S) #21208 (MK3.9) #31208 (CORE One)

This error is shown when the printer's nozzle temperature drops below 5 ºC at any point during the print . If this happens during a print, the print will be stopped.

How to fix it?

Extruder inspection

This error is usually caused by the hotend thermistor.

Access the LoveBoard. Check if the thermistor is connected correctly and if there is no damage along the cable length.

If you have a multimeter, it is possible to check the resistance of the cables to verify if they are damaged. For that, use our Multimeter usage guide.

xBuddy board inspection

Make sure that the Loveboard main cable is correctly connected to the xBuddy board.

9 comments

du Preez

•

2 months ago

After upgrading firmware (6.0.3 to 6.1.3) I started getting this error when starting in a cold environment. To work around it I touch with my finger near the thermometers until their temperature is above minimum.

rashlee7

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3 months ago

I'm regularly experiencing this error in cold environments, usually when trying to load filament from a cold start. I've been able to work around the issue by preheating the machine for the filament I want to load, which warms the thermistor enough that the error doesn't reappear when I load the filament.

rashlee7

•

3 months ago

I also saw this issue when my garage was below 10° C. The issue resolved itself immediately after the space was heated.

Michael

•

3 months ago

I had my mk4s show this error when trying to start a print or even pre-heating the heatbed and nozzle in the enclosure in my garage (currently ~ 4 °C). After immediate reboot same procedure, couldn't get the machine to even start heating. Moving the whole thing into a heated room worked almost instantly, so there is not necessarily a hardware failure involved if the temperature is very low in the first place.

Matthias

•

3 months ago

In my case, it is obviously the connection at the loveboard, so either the plug or the socket that does not connect reliably. I can reproduce the problem by moving the plug slightly back and forth.
The problem first occurred when I replaced the hotend. The second hotend or thermistor connection works better, although I can't see any difference, damage or wear on the first one.
I have solved the problem for the time being, but I am not sure whether the procedure for replacing the hotend by unplugging and plugging it back in is a permanently good solution.