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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