Troubleshooting Refrigeration System Blockages

Shandong Runte Refrigeration Technology Co., Ltd. has issued guidance on common issues that cause blockages within refrigeration systems. These problems can manifest as ice, dirt, or oil obstructions, significantly impacting equipment performance and longevity.

Ice blockages are primarily attributed to excess moisture within the refrigeration system. This moisture can originate from the compressor's motor insulation, insufficient drying during manufacturing, or impurities in the refrigerant oil and coolant itself. When water freezes, particularly at the capillary tube outlet, it obstructs refrigerant circulation. This not only halts cooling but can also lead to corrosion and component damage, while compromising lubrication.

Dirt blockages stem from impurities such as manufacturing debris, welding oxides, or low-quality desiccant powder entering the system. These contaminants can accumulate in the capillary tube or dryer filter, hindering refrigerant flow. While dryer filters are designed to capture most particles, fine debris can bypass them and cause issues downstream.

Symptoms of ice blockage include initial normal operation followed by intermittent refrigerant flow sounds. Severe blockages cease circulation, causing compressor overheating and cooling loss. Dirt blockages may result in continuous compressor operation without cooling, and frost can form on components like the dryer filter due to pressure drops.

The company emphasizes that both ice and dirt blockages degrade system efficiency and shorten lifespan. The provided information aims to help users identify these prevalent issues, underscoring the importance of maintaining minimal moisture and cleanliness for optimal refrigeration system operation.