Control card over temperature
Danfoss · VLT HVAC-FC 102 Frequency Converter
What does 65 mean?
The control card temperature has reached its cut-out limit of 80 °C, indicating excessive heat within the control section of the frequency converter. This can lead to erratic behavior, reduced lifespan, or permanent damage to the control card if not addressed. Proper cooling is essential for its reliability.
Complete Troubleshooting Guide
- 1
Check that the ambient operating temperature of the frequency converter is within its specified limits.
- 2
Inspect for clogged air filters that restrict airflow to the control card, and clean them thoroughly if necessary.
- 3
Verify the proper operation of all cooling fans responsible for airflow to the control card/enclosure.
- 4
If other steps fail, perform diagnostics on the control card itself for potential defects.