CREALITY ENDER 3 S1 PRO Flashing Red
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92%
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CR Touch Auto Bed Leveling Sensor
The flashing red light is a specific logic alarm indicating that the probe's internal controller has detected a failure during its self-test or deployment cycle. Mechanically, this is usually due to a bent probe pin or internal solenoid binding that prevents the pin from reaching its expected magnetic trigger point within the sensor housing. Replacing the sensor restores the electromechanical feedback loop necessary for the Z-axis homing sequence.
SKU: 4001010042
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8%
CONF
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Sprite Extruder 5-Pin Probe Cable
On the S1 Pro, the CR Touch is connected via a specific ribbon cable to the Sprite Extruder's breakout board. Intermittent contact in the PWM or trigger signal wires (often due to fatigue from high-speed carriage movement) will cause the MCU to lose synchronization with the probe, resulting in a fail-safe red flashing state even if the probe is mechanically sound.
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DIY Repair Guide
Watch exactly how to replace the CR Touch Auto Bed Leveling Sensor.