Liebherr Fault Code

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E 502

Hydraulic speed slows down; cooling fan runs at max RPM.

System

Not specified

Symptom

Hydraulic speed slows down; cooling fan runs at max RPM.

Diagnosis & fix steps

ACTION: 1. Check hydraulic oil level. 2. Inspect oil cooler for debris blockage. 3. Test Brown ground wire for resistance.

Red Seal field insights

Liebherr fans are often hydrostatic. If the fan isn't spinning at full speed when the oil is hot, the fan drive solenoid is likely stuck or disconnected.

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