93
Thermo King
Critical

Low Compressor Suction Pressure

Dangerously low compressor suction pressure detected.

Possible causes

  • Low refrigerant charge
  • Blocked expansion valve (TXV)
  • Total evaporator airflow failure

Recommended actions

  • Check refrigerant charge
  • Inspect evaporator air filters
  • Ensure the ETV is opening correctly

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