4110
Control Board Overtemperature
ABB · ACS800 Standard Firmware
What does 4110 mean?
The control board temperature has exceeded 88°C. This indicates inadequate cooling or excessively high ambient temperatures in the drive enclosure, which can lead to control board malfunction, erratic behavior, or permanent damage.
Common Causes
- Control board internal temperature sensor indicates overheat condition.
- Poor ventilation or blocked heatsinks on the control board.
- High ambient operating temperature affecting the control board.
- Excessive load or power dissipation on the control board components.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the ambient environmental conditions (temperature, humidity) around the drive enclosure to ensure they are within specification.
- 2
Verify proper airflow through the drive's internal cooling channels and ensure no vents are blocked.
- 3
Inspect the main cooling fan and any additional cooling fans for proper operation, cleanliness, and unobstructed rotation.
Verified technical data. Last updated: March 2026
Related Faults
Source: ABB ACS800 Standard Firmware