P00194
Carrier Transicold
Critical

High Suction Pressure

Excessively high suction pressure detected during diagnostic tests.

Possible causes

  • Excessive refrigerant charge
  • Flooded expansion valve (TXV)
  • Compressor failure (internal valves)

Recommended actions

  • Monitor pressures with mechanical gauges
  • Adjust TXV superheat
  • Check condition of compressor valve plates

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