Leaks in commercial refrigeration systems are one of the most common and costly issues businesses face. A leaking unit can lead to temperature fluctuations, increased energy consumption, and potential spoilage of valuable stock. If left untreated, even a minor leak can lead to more serious damage, including compressor failure.
Understanding how and where leaks occur – and how they’re fixed – can help you stay on top of your refrigeration maintenance.
Common Causes of Refrigeration Leaks
Refrigeration systems operate under high pressure and involve moving parts that naturally cause vibration throughout the system. This vibration, particularly around the compressor, is a major contributor to pipework fatigue. Over time, even small pulses from the compressor pumping refrigerant can cause wear and tear, especially in areas where pipework isn’t properly secured. These vibrations can eventually lead to cracks and pinhole leaks in copper pipes.
Another key area to watch is the evaporator. This component is frequently exposed to the chemical action of stored food, sauces, and other acidic materials. Over time, this exposure can speed up the degradation of evaporator coils and contribute to corrosion-related leaks.
Leaks can also occur at valves, fittings, and poorly capped access ports. These connection points are particularly vulnerable and must be checked regularly during routine maintenance. Additionally, the thin refrigerant lines running to pressure controls can develop leaks and often require full replacement.
How Technicians Fix Leaks
Locating and fixing leaks is a precise job best left to qualified refrigeration mechanics – like those at All So Cool. One of the techniques used in the repair process involves silver soldering. To seal small cracks or holes in copper pipes, technicians may use an oxy-acetylene gas torch to heat and bond a silver-based solder to the damaged section. This creates a durable, high-temperature-resistant seal that can restore the pipe’s integrity.
Before any repair is carried out, technicians perform a thorough inspection to identify the exact location of the leak. This often involves using electronic leak detectors or soap and water testing methods. Once identified, the affected section is either soldered, re-secured, or replaced depending on the severity and accessibility of the damage.
Preventing Future Leaks
While some leaks are inevitable over time, regular maintenance can drastically reduce their occurrence. Securing pipework properly to reduce movement, routinely checking fittings and valves, and keeping evaporators clean and free of corrosive residue all contribute to the long-term health of your refrigeration system.
If your system is showing signs of a leak – such as reduced cooling performance, hissing sounds, or increased energy usage – it’s crucial to act quickly. Timely repairs can save you from major breakdowns and expensive repairs down the track.
Need help with your refrigeration unit?
All So Cool specialises in the supply, installation, preventative maintenance and repair of refrigeration equipment.
Having your refrigeration plant serviced by All So Cool at regular intervals will prevent the chance of a system breakdown. We can tailor a preventative maintenance package to suit your business’s needs ensuring your refrigeration system continues running smoothly all year round.
Chat to All So Cool fridge mechanics Brisbane and Gold Coast on (07) 3422 0011 to discuss how we can help keep your business running cool. We are available 24/7.