Ender 5 nozzle does not reach the target temperature

What is the problem?

When the plate has reached the target temperature, the nozzle is heated. This happens up to about 5-6 degrees below the target temperature, until the ender displays a "Heating Failed" error and the connection is lost. The effect is independent of the setpoint temperature. Seems like an Offset of -6 degrees.

ender5 temp

What did you already try to solve it?

No SD Card in the Printer, temperature intervall (autoreport) 0s

Have you tried running in safe mode?


Did running in safe mode solve the problem?


Systeminfo Bundle

You can download this in OctoPrint's System Information dialog ... no bundle, no support!)


Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible

OctoPrint 1.7.3, Ender 5 1.70.2 BL

Hello @stecke83 !

That is the thermal runaway safety feature of marlin.

You may look that the heat break cooler does not affect the hotend. Also the part cooling fan.

Any you also may run a PID tune. The line is quite wobbly.


Hello, Thank you very much! PID Autotune did the trick!!

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