There are four documented failure conditions for the leveling sensor.
¶ 1. Damaged leveling sensor
Symptoms: When you power-on the printer, the self-test fails. The probe cannot extend, and homing fails during auto-leveling. You may first rule out loose connectors.
If the leveling sensor is confirmed damaged, it cannot be repaired and must be replaced.
¶ 2. Broken leveling probe
Symptoms: Visible damage by visual inspection.
The leveling probe cannot be repaired, but it can be replaced separately.
¶ 3. Mesh bed compensation out of tolerance
Symptoms: The probe passes the self-test and works normally, and the connectors are tight. However, auto-leveling stops halfway and restarts from the first point.
Please contact technical support if this occurs.
¶ 4. Electromagnetic interference during printing causes the probe to extend unexpectedly
Based on our experience, this issue may be caused by the throat cooling fan. Please contact technical support if this issue happens.