36
Thermo King
Critical

Electric Motor Failed to Run

The backup electric motor does not start when standby mode operation is required.

Possible causes

  • Missing phase in external power supply
  • Defective electric motor contactor
  • Burnt or seized electric motor
  • Tripped thermal overload

Recommended actions

  • Verify input voltage at the power plug
  • Reset the thermal protection relay
  • Check contactor operation
  • Measure motor starting amperage

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