Heatbreak MAXTEMP Error #26212 (MK4S) #13212 (MK4) #21212 (MK3.9)

Relevant for:

MK4 MK3.9 MK4S

Last updated 4 months ago

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What happened?

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

Error name: Heatbreak MAXTEMP Error

Error code: #26212 (MK4S) #13212 (MK4) #21212 (MK3.9)

The error is shown when the heatbreak thermistor measures over 100 ºC at any point.

How to fix it?

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.

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