Liebherr Fault Code

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0x00C4

Kelly Winch Inoperative / Lockout Active

System

Hydraulics / Winch

Symptom

Kelly Winch Inoperative / Lockout Active

Diagnosis & fix steps

LOGIC: Main Winch Proportional Pilot Solenoid Current Below Normal (Open Circuit). ACTION: Measure solenoid coil resistance at the main winch manifold block. Inspect harness flex points around the mast swivel joint for wire strain or broken pins.

Red Seal field insights

Foundation Safety: Prevents accidental free-spooling or uncontrolled lowering of heavy drill strings if solenoid driver feedback breaks.

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