Basic Information: Printer Model: ender 3 V2 MCU / Printerboard: creality 4.2.7 3 days of googling and i am at a loss. i get the error a few minutes into a print. tried a new thermistor and new heating element and still get the same error. it looks like my temps are stable so idk what the issue …

This appears to be a communication issue, the MCU consistently times out after the heater fault. I believe the heater fault is a result of the MCU failing to update the temperature of the extruder on the host. I suspect that following the guide here would be the appropriate course of action. In a…

Another one! Heater extruder not heating at expected rate

General Discussion

EddyMI3D June 30, 2025, 5:41am 2

Hello @vac33125 !

You may see here: Heater <name> not heating at expected rate

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Another one! Heater extruder not heating at expected rate

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