R-Pro › Field cases › Refrigeration systems
Overcurrent at Start (Starting Device Failure)
Likely causes
Insufficient start capacitor causing high inrush current
Check: Measure start capacitor capacitance and replace if low
What to do: Measure start capacitor capacitance and replace if low → Check and adjust soft starter acceleration time → Review breaker current rating → Check inverter current limit settings for startup
Incorrect soft starter or inverter settings
Check: Check and adjust soft starter acceleration time
What to do: Check and adjust soft starter acceleration time → Review breaker current rating → Check inverter current limit settings for startup
Breaker rating too small for starting current
Check: Review breaker current rating
What to do: Review breaker current rating → Check inverter current limit settings for startup
Breaker trips from overcurrent at startup. Inspect the start capacitor or soft starter.
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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