Refrigerator Not Cold Enough: 3 Possible Causes and Fix

Commercial display freezers play an important role in food preservation, but there are maybe some problems during the use of the refrigerator. Now Phirella lists the common problems in the use of the refrigerator. You can find the reason why the freezer is not cooled, the freezer is weak, the noise is loud, and you can find suggestions and methods for repairing the refrigerator.

Refrigerator Not Cooling

1. The compressor is operating normally and refrigerator is not cooled. 

If this is the case, you should check for refrigerant leaks.

Reason:

1. The compressor works normally.

2. There is no airflow or running water in the evaporator.

3. The compressor casing is not hot, and it is slightly higher than the ambient temperature after long-term operation.

4. There is no refrigerant in the refrigeration pipeline.

Maintenance method: 

Look at the oil joints in the welded parts of the pipeline, and the oil traces are leaking parts;

If there is no sign of oil, you can use the next method to check the leak. Charge 0.8MPa nitrogen, check the external leakage with instrument or soapy water. This way you can easily find the leak. Then weld the damaged part.

2. After the press has been running for a period of time, the protector is disconnected.

Why:

1. The power supply voltage is too high;

2. The overload protector is damaged;

3. Tnternal mechanical failure of the compressor;

4. The temperature near the compressor is too high.

Fix:

1. Install the voltage regulator, adjust to the rated value;

2. Replace the overload protector;

3. Replace the starter relay;

4. Replace the compressor;

5. Increase the heat dissipation space.

3. The compressor is not running.

Why:

1. The fuse is blown;

2. Poor contact of power plug, socket and power cord;

3. The power supply voltage is too low.

4. The temperature controller knob is not turned on;

5. Compressor failure

Maintenance method:

1. Check for short circuit phenomenon;

2. Rotate the thermostat to a suitable position;

3. Replace the corresponding temperature controller;

4. Replace the starter or overheat protector;

5. Replace the compressor;

The freezer refrigeration is weak

Reason:

1. The thermostat is set in an improper position;

2. There are too many foods in the cabinet, the door is opened frequently or the door opening time is too long;

3. The ambient temperature is too high or the air circulation is not smooth;

4. The refrigerator door is not closed;

5. The refrigerant leaks or is insufficient;

6. Compressor efficiency is reduced;

7. There is too much ice in the refrigerator.

Maintenance method:

1. Adjust or replace the temperature controller;

2. Use or adjust according to the instructions;

3. Put the freezer in a suitable environment;

4. Adjust the refrigerator door;

5. Timely defrost;

6. Replenishing refrigerant;

7. Replace the compressor;

loud noise

Reason:

1. The base is not flat or the refrigerator is not adjusted smoothly;

2. The parts inside the machine collide and loose;

3. The joint between the pipeline and the cabinet is caused by the friction of the compressor work;

4. The presser foot fixing screw is too loose, too tight or the damping rubber pad is too loose, aging or lost;

5. The fan shaft clearance is too large, the blade is blocked or the fan bracket is loose.

Fix:

1. Re-adjustment is stable;

2. Tighten the wire or adjust the corresponding parts;

3. Adjust the pipeline to avoid friction or resonance;

4. Adjust the tightness of the damping rubber pad or replace the new rubber pad;

5. Replace the fan, clean up the surrounding obstacles or re-fix it.

According to the above method, you can fix your refrigerator. If you have any questions, please comment.