F30004 Siemens — Drive Overtemperature Fault
At a glance
- Severity
- WARNING
- Domain
- DRIVES
- Reference standard
- IEC 61800-5-1
- Product / context
- Power unit overtemperature
What it means
Drive overheating detected by the temperature sensor on the heatsink or IGBT module. The temperature has exceeded the alarm or fault threshold. This compromises the reliability of the power components and can lead to IGBT destruction if not addressed.
Probable causes
- Drive cooling fan faulty or blocked
- Dust filter clogged or ventilation grille obstructed
- Ambient temperature inside the electrical panel too high (>40°C)
- Heavy duty cycle with high average current
Reference values
| drive thermal management | {"max_ambient_no_derating":"40 °C (typical)","derating":"above 40 °C reduce current per the manual","cleaning":"check heatsink fins/filter at every service"} |
|---|
Where to start
Check the drive cooling fan operation. Is the fan running properly?
Full guided diagnosis in the app
The diagnostic tree for this fault has 7 guided steps with measurements, checks and resolutions. You'll find it in ElectraIQ, one of the five IndexOS apps: free, works offline.
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The same fault on other brands
More Siemens codes
- F07900 — Motor Stall / Locked Rotor
- F30001 — Overcurrent Fault
- F30002 — DC Bus Overvoltage Fault
- F30003 — DC Bus Undervoltage Fault
- F30021 — Ground Fault
- 0xE900 / 0xE901 — IO-Link communication lost (device not responding)
- 6EP1333-4BA00 — Unstable PLC power supply — cyclic restarts
- 6ES7521-1BL00-0AB0 — Digital input module — input not reading (stuck at 0)