@shaqour said in controlling two heaters in one extruder:
@dc42 can you please advise me what command is used to trigger the fan based on the temperature of the heater?
The command you gave before:
M106 P0 S1 I0 F500 H2 T120
will turn fan 0 on when heater 2 temperature is 120C or more.
Note, Fan 0 output is normally used for the print cooling fan. I suggest you use fan 1 or 2 fr the hot end cooling fan.