Yaskawa GA700 Error Code oH3

Yaskawa PLC & VFD Major Overtemperature

Model: GA700 | Code: oH3

Applicable Systems
GA700 GA500 A1000 V1000 J1000

Symptoms

Motor overheat (PTC): motor PTC sensor triggered.

Possible Causes

  • Motor overheating
  • Motor cooling failure
  • PTC sensor fault

Troubleshooting Steps

  1. Step 1: Check motor temperature
    Temperature within rated range
  2. Step 2: Verify motor cooling
    Cooling adequate
  3. Step 3: Verify PTC sensor
    Sensor functional

How to Reset

Reset via digital operator after motor cools.

Related Yaskawa Fault Codes

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Source: Yaskawa GA700 Technical Manual, Yaskawa Electric

Category: PLC & VFD