Rapido UHF can 't reach more than 226 °C

Another day another problem I have a Rapido Plus UHF with a heater up to 350°C, connected to the EBB36 board. When trying to do pit tuning the maximum temperature as it gets is 226°C then to the message "pid_calibrate interrupted". Up to 180 ° C, the heating slides like crazy but drops drastically. Anyone have an idea what's wrong Below is my configuration. [extruder] heater_pin: can0:HE0 sensor_pin: can0:TH0 sensor_type: MAX31865 sensor_pin: can0:PT100_CS spi_bus: spi1 rtd_reference_r: 430 #pullup_resistor: 4700 min_temp: 0 max_temp: 350 max_extrude_only_distance: 200 nozzle_diameter: 0.4 min_extrude_temp: 170 pressure_advance: 0.03 rtd_num_of_wires: 2 control: pid pid_kp: 56.652 pid_ki: 2.861 pid_kd: 280.431 [firmware_retraction] retract_length: 0.5