Liebherr Fault Code

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E 322

Concrete Pump / CFA Telemetry Fault

System

Controls / PDE

Symptom

Concrete Pump / CFA Telemetry Fault

Diagnosis & fix steps

LOGIC: Concrete Flow Meter / CFA Pressure Sensor Communications Lost. ACTION: Inspect inline flow meter harness connection near the base of the mast. Verify 24V sensor power supply and test CAN bus signal lines.

Red Seal field insights

CFA Piling Logic: Crucial during Continuous Flight Auger (CFA) operations; loss of concrete volume/pressure telemetry stops automated auger extraction.

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