Error CodecriticalThermal
F0003 Drive overtemperature
In system: ABB Drive Faults
F0003 indicates drive overtemperature in ABB Drive Faults. Use this page to confirm root cause before replacement actions.
Technical Details
Fault ClassThermal
Default ReactionDrive trip and output inhibited
AcknowledgeAfter root cause correction and verification
Drive ObjectABB Drive Faults
Possible Causes
1Cooling fan failure
HIGH likelihoodValidate this cause with diagnostic values and wiring/mechanical inspection before replacing parts.
2Ambient temperature too high
MEDIUM likelihoodValidate this cause with diagnostic values and wiring/mechanical inspection before replacing parts.
Step-by-Step Solution
1
Action 1
Inspect cooling path
Details
- Record measured values before and after this action
2
Action 2
Reduce enclosure temperature
Details
- Record measured values before and after this action
Diagnostic Parameters
| Parameter | Description | Value/Unit |
|---|---|---|
| r0068 | Power unit temperature | deg C |
| r0949 | Fault value | Code-specific |
Prevention Tips
Record baseline operating values after commissioning and compare during maintenance.
Review wiring torque, grounding, and cabinet conditions during planned shutdown.
Apply parameter change control to reduce repeat faults after service activities.
Frequently Asked Questions
Structured fault troubleshooting workflow for maintenance teams