Repair workspace

Auto Bed Leveling Probe Failure

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Inspect probe mounting, deployment, wiring, nozzle cleanliness, bed surface, offsets, and firmware configuration before repeating a homing or mesh cycle.

Bed Leveling & ProbesIntermediate15 min

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Ordered repair sequence

Step 1

Stop the machine if the nozzle approaches the bed without a valid trigger.

Step 2

Clean the nozzle and bed, then inspect the probe body and mount.

Step 3

Confirm the probe is rigid and the pin or sensing face is unobstructed.

Step 4

Check the harness and connector through full toolhead travel.

Step 5

Run the probe self-test or state display if available.

Step 6

Verify X, Y, and Z offsets against the machine configuration.

Step 7

Repeat several measurements at one point and compare consistency.

Step 8

Rebuild and save the mesh only after repeatability is acceptable.

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