R-Pro › Field cases › Refrigeration systems
Immediate Trip Due to Wiring Short Circuit
Likely causes
Two wires contacting from damaged insulation
Check: Disconnect all loads from wiring
What to do: Disconnect all loads from wiring → Re-close breaker: if trips on wiring alone, wiring is shorted → Reconnect loads one by one to identify which causes the trip → Measure insulation resistance of suspect component and replace → Replace or repair damaged wire insulation
Conductors touching in terminal block
Check: Re-close breaker: if trips on wiring alone, wiring is shorted
What to do: Re-close breaker: if trips on wiring alone, wiring is shorted → Reconnect loads one by one to identify which causes the trip → Measure insulation resistance of suspect component and replace → Replace or repair damaged wire insulation
Internal short circuit in component
Check: Reconnect loads one by one to identify which causes the trip
What to do: Reconnect loads one by one to identify which causes the trip → Measure insulation resistance of suspect component and replace → Replace or repair damaged wire insulation
Immediate trip on power-on indicates a short circuit. Disconnect loads one by one to locate the short. Do not force the breaker closed until the short is located. Fire risk.
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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