00099
Carrier Transicold
Critical

Check Standby Contactor

Failure in the electric standby mode contactor coil or circuit.

Possible causes

  • Inadequate external grid voltage
  • Carbonized contactor points
  • Open 115V/230V coil

Recommended actions

  • Verify external power supply
  • Visually inspect standby contactor
  • Measure voltage at contactor input and output

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