Heating Related

Determine Whether the Heating Function is Normal

LED Off: The heating port is not working. Please check whether the pin settings in the configuration are correct.
LED On: Indicates that the heating port is working. At this point, use a multimeter to measure the port's output voltage to confirm whether the power supply is normal.

Confirm whether the power supply's rated power meets the equipment's requirements. Insufficient power supply may cause the heating temperature to fail to reach the set value.
Power calculation example:
The power supply specification is 24V 5A, with a maximum output power of 120W. If the heating port power is 40W, the remaining 80W is supplied to other components, which typically cannot meet the overall requirements.
The power supply specification is 24V 10A, with a maximum output power of 240W, which generally meets the power requirements of the heating port and other components.

If the heating port cannot reach the set temperature, check whether the heating element and connecting wires are damaged or have poor contact.
If there is no control signal to the heating port, the LED is off, but there is still output:
If the heating port LED is off and cannot be controlled, but voltage output is measured, first check and save the corresponding pin settings in the configuration. If the output still exists after saving, it can be determined that the MOS tube is damaged.

Follow safety operation guidelines when measuring voltage to avoid short circuits or electric shocks.
If the power supply power is at a critical level, it is recommended to replace it with a higher power supply to ensure system stability.

Add Configuration

printer.cfg
[verify_heater extruder]
max_error: 120
check_gain_time:120
hysteresis: 50
heating_gain: 2

printer.cfg
[verify_heater heater_bed]
max_error: 120
check_gain_time:120
hysteresis: 50
heating_gain: 2