37
Phase imbalance
Danfoss · VLT HVAC Drive FC 102
What does 37 mean?
There is a significant current imbalance detected between the power units within the frequency converter. This can indicate issues with the motor, motor cabling, or an internal problem within the drive's power stage. Sustained phase imbalance can cause overheating in the motor or drive components and lead to premature failure.
Source: Danfoss VLT HVAC Drive FC 102
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