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ErrorLib — Industrial Fault Code Library

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OH0700

LOCKER OVERHEAT

Fanuc · Series 0i-D/0i Mate-D Maintenance

What does OH0700 mean?

This Fanuc Series 0i-D/0i Mate-D overheat alarm indicates that the CNC cabinet has overheated. This condition can damage electronic components if not addressed promptly.

Common Causes

  • Failure of one or more cooling fans within the CNC cabinet.
  • Blocked or dirty ventilation openings, air filters, or grilles on the cabinet.
  • High ambient temperature surrounding the CNC cabinet.
  • Excessive heat generation from components within the cabinet due to overload or malfunction.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the operation of all cooling fans within the CNC cabinet and ensure they are spinning freely and moving air.

  2. 2

    Inspect all ventilation openings, air filters, and grilles on the cabinet for dust accumulation or blockages; clean thoroughly if necessary.

  3. 3

    Check the ambient temperature around the CNC cabinet to ensure it is within the specified operating temperature range.

  4. 4

    Measure the internal temperature of the CNC cabinet using a thermal sensor to confirm excessive heat buildup.

  5. 5

    Ensure that the cabinet doors are properly closed and sealed to maintain optimal airflow patterns and prevent ingress of dust.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

361ABNORMAL PHASE DATA(INT)364SOFT PHASE ALARM(INT)365BROKEN LED(INT)
Source: Fanuc Series 0i-D/0i Mate-D Maintenance
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