ALARM 33
Inrush fault
Danfoss · VLT HVAC Drive High Power
What does ALARM 33 mean?
Too many power-ups have occurred within a short time period. This can stress components due to repeated inrush currents, potentially causing premature failure of the frequency converter.
Complete Troubleshooting Guide
- 1
Allow the unit to cool to its operating temperature before attempting further power cycles.