What this code means

The motor/generator bearing temperature has exceeded the warning threshold, indicating potential bearing degradation.

Symptoms

• Motor noise increasing
• Vibration from motor area
• Motor efficiency decreasing
• Temperature warning
• Power output limited

Common causes

• Bearing lubrication degradation
• Bearing wear from mileage
• Motor misalignment
• Contamination in bearing
• Excessive radial load from belt or gear

Diagnostic steps

1. Monitor motor bearing temperature trend
2. Listen for bearing noise with stethoscope
3. Check motor vibration levels
4. Measure motor shaft play
5. Review motor duty cycle and load history

Repair notes

Motor bearing replacement or motor assembly replacement. Bearing access depends on motor design - some allow bearing service, others require full motor replacement.

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