00018
Carrier Transicold
Critical
Low Refrigerant Press
Refrigerant pressure too low for safe operation.
Possible causes
- Total loss of refrigerant
- Step valve accidentally closed
- Defective low pressure transducer
- Evaporator coil icing
Recommended actions
- Verify refrigerant charge
- Perform defrost cycle
- Test low pressure sensor
- Open service valves if closed
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