154
Thermo King
Critical

Low Suction Pressure Switch Failure

Inconsistent state or failure detected in the low suction pressure switch.

Possible causes

  • Extremely low refrigerant pressure
  • Defective or open low-pressure switch
  • Severe refrigerant gas leak

Recommended actions

  • Connect gauges and verify actual pressures
  • Check continuity of the LP switch
  • Check refrigerant charge and look for leaks

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