Practical Defrost Refrigerator Maintenance and Repair Course

In this comprehensive educational series of 8 videos, I provide a practical, step-by-step explanation of how to deal with one of the most common problems in defrosted refrigerators: a Freon leak. Through this series, we will learn how to detect the leak, repair it, perform soldering operations, and then move on to the discharge, charging, and performance testing stages.

Detailed video content:
✅ Video 1: Detecting a Freon Leak

Explaining the signs of a leak.

Using appropriate methods to locate the leak (soap foam, leak detectors).

Common causes of leaks in defrosted refrigerators.

✅ Video 2: Pinpointing the exact location of the leak

How to trace gas lines and copper pipes.

Detecting a precise leak in the evaporator or behind the insulation.

Pre-repair preparations (removing residual gas, if any).

✅ Video 3: Preparing the necessary tools and materials

Demonstration of the tools used in the repair (solder tube, flux, thermocouple, etc.).

Important tips to avoid damaging pipes or other parts during repairs.

✅ Video 4: Soldering a Leak

A practical explanation of how to solder a hole or break using tin or brazing.

How to protect pipes and nearby components from heat during soldering.

Test the solder after completion.

✅ Video 5: Pressure test to ensure the quality of the solder.

Using a pressure test pump.

Ensuring there are no leaks after the repair.

The appropriate time to test for stability and pressure loss.

✅ Video 6: Evacuating air and moisture from the circuit

Connecting the vacuum pump.

Explanation of the importance of proper emptying for the longevity of the compressor.

Recommended emptying time and signs of successful completion.

✅ Video 7: Freon Charging

Choosing the appropriate type of Freon for the defrost refrigerator.

Proper connection method for the charging meter and cylinder.

Determine the required quantity and charging method by weight or pressure.

✅ Video 8: Operation Test and Performance Monitoring

Operate the refrigerator after charging and monitor the pressures.

Ensure the refrigerator is cooling and the compressor is operating normally.

Final Notes and Tips for Maintaining the Refrigerator After Repair