My HE280 is not reaching the set temperature

If your HE280 is having issues reaching the target temperature, you should run a PID Auto-tune on the hot end. To do this:

Send the following command via the terminal: M303 P0 S280 X0

Fuexplanationion:

• M303 is the instruction to start the Autotune Process
• P0 instructs it to perform the test for the hotend
• S280 sets the temperature to run the test to
• X0 is the instruction to save the results to EEPROM