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Checking the probing sensor
- Make sure that Hotend #1 is cool before continuing.
- Removing the printhead lid.
- Push Hotend #1 upwards.
- You should hear two soft clicks, one when pushed and one when released.
- The hotend should be able to move freely up and down without any issues.
- Check that the thermistor and heater cartridge cables are not obstructing the probe sensor in any way.