OL
Thermo King
Critical
Electric Standby Overload (DSR)
Electric standby motor drew excessive current and tripped the overload protection.
Possible causes
- Locked compressor or seized motor
- Low voltage at standby plug
- Phase imbalance or loss
- Defective overload device
Recommended actions
- Verify standby supply voltage
- Check motor amperage on all phases
- Inspect compressor for binding
- Reset overload and retest
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