Siemens SINAMICS G120 Error Code F30004

Siemens PLC & VFD Major Overtemperature

Model: SINAMICS G120 | Code: F30004

Applicable Systems
S7-1200 S7-1500 S7-300 S7-400 LOGO! SINAMICS

Symptoms

Power module overtemperature.

Possible Causes

  • Cooling fan failure
  • Heatsink clogged
  • Ambient too hot

Troubleshooting Steps

  1. Step 1: Check cooling fan
    Fan running at rated speed
  2. Step 2: Clean heatsink
    Heatsink clean
  3. Step 3: Reduce ambient temperature
    Temperature within rated range

How to Reset

Reset via operator panel after temperature normalizes.

Related Siemens Fault Codes

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD