If the cooling capacity of the plant has reduced and it is not being able to maintain the provision room or cargo hold temperature, following may be the causes :
| Reasons | Solutions |
| Inadequate refrigeration. | Charge refrigerant in the circuit. |
| Insufficient or damaged insulation in the room. | Check and renew the insulation. |
| Room or hold is over packed. | Ensure that the room is not filled above its capacity. |
| Malfunctioning solenoid or TEV. | Check the functioning of these valves and renew if not functioning properly. |
| Poor thermostat location that senses cold temperatures. | Place the sensor of the TEV in proper location i.e discharge of the evaporator. |
| Room door is kept open. | Ensure to close the door while exiting the provision room. |
Read more : Refrigeration system problem in ship, high compressor discharge temperature; Refrigeration system problem in ship, compressor start and stops frequently; Refrigeration system problem in ship : reducing oil level in compressor; Refrigeration system problem in ship, compressor is running continuously
