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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