Error code E06 while printing

Hello
When I printing it will stop half way or at the start and E06 comes up I’ve look online and youtube and can’t find anything on what that is. Is there anyone that can help.
Thanks

I found this:

–Ender-5 S1–
E06/E07 ERROR:
Nozzle heating escape/nozzle heating failure

The temperature fluctuates significantly during printing.

The usual phenomenon is the inability to heat up to the specified temperature.

Measure whether the nozzle heating port at the main board end maintains 24V during heating.
Poor thermal sensitivity and problems with heat conduction.

Somewhere I read it could be the voltage switch is set wrong. That’s all I’ll got.

could be a bad wire that is intermittently not connecting. Try bringing it up to heat and mailing the cable bundle.