Usually CHC can directly replace the original heater block, but the pro version may causesome specific problems such as overload protection due to the high starting power. You canfirst try to limit the power output in the firmware or slightly adjust down the PSU outputvoltage, first troubleshooting before making further modifications and upgrades.Default thermistor Semitec 104nt-4-r025h42g Compatible with old model Semitec 104GT2
marlin 5
klipper ATC Semitec 104NT-4-R025H42G
duet3d Semitec 104GT2

NTC100K B3950
marlin 1
klipper Generic 3950
duet3d Typical Chinese bed heater thermistor

PT1000 Directly connected to controller board
marlin 1047
klipper PT1000
duet3d See reference links below for details

Reference links:
https://www.klipper3d.org/Config_Reference.html
https://docs.duet3d.com/User_manual/Connecting_hardware/Temperature_connecting_thermistors_PT1000

First thing you can try is to do a PID auto calibration
marlin:https://marlinfw.org/docs/gcode/M303.html
klipper:https://www.klipper3d.org/G-Codes.html#pid_calibrate
Please check whether the plug wires of CHC thermistor and heating element are reliablyconnected. Please note that the two connectors of CHC must not be bent or moved whenthe print head is moved, so they will quickly fail to appear unreliable connection or evenburned, etc. If there are many burrs in the temperature curve, it is possible that there is otherelectromagnetic interference near the print head or in the thermistor wire, please eliminatethe source of interference before testing. Increasing the frequency of PWM control can alsoimprove the stability of temperature control.

Please unplug the ceramic heating plug of CHC after turning off the power and measure theresistance between the two leads with a multimeter. If the resistance is open circuit at roomtemperature, it is likely that the ceramic heating element has been damaged, please contactcustomer service to ask about the warranty.

CHC maximum operating temperature is 300 degrees Celsius。The warranty will be lost ifused at temperatures exceeding 300 degrees.

Tutorials https://drive.google.com/drive/folders/1zcrJ_0HBfoqcIaYhhwa60_IKBCYcT0Qw

CHC's ceramic heating elements and metal cores have different coefficients of thermalexpansion, and all shipped CHC products have been aged under a 300°C cycle to ensurelong-term stability below 300 degrees. However, if the temperature exceeds 300 degreesCelsius, there is a certain risk or cause the expansion of the metal core to the ceramic heatingelement to burst out and cause permanent damage. Damage caused by this is not coveredby the warranty. If you need to work at more than 300 degrees hotend please buy othertraditional heating blocks, such as brass or copper alloy heating blocks and high-poweredheating cartridge, etc.

CHC will undergo cycle aging and failure quality testing before shipment, if there are minorcracks and it passes the cycle aging test, it will not affect the service life and warranty.

For the same configuration (nozzle material filament slicer settings), the CHC is approximately5-8% higher than the V6 heating block in flow rate. the CHC pro is approximately 10-15%higher than the volcano heating block in flow rate.

When the ceramic heating element is used below 300 degrees Celsius for a long period oftime, the nominal life is greater than 10,000 hours.