Liebherr Fault Code

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0x016C

Hydraulic Temperature High / Power Derate

System

Cooling

Symptom

Hydraulic Temperature High / Power Derate

Diagnosis & fix steps

LOGIC: Hydraulic Retarder / Wet Brake Cooling Pump Flow Low. ACTION: Inspect mechanical flow sensor on the brake cooling manifold. Test brake cooling pump discharge pressure and check oil cooler matrix for dust clogging.

Red Seal field insights

Brake Overheat: Dissipating heat during continuous downhill loaded hauls requires high-flow oil cooling across wet brake discs; low flow forces power derates.

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