HVAC-R Solutions
corrosion prevention

How to Identify Corrosion On Your Air Conditioning Units

Graphene Manufacturing Group explains the best practices to identify and manage corrosion on your business’s air conditioning units.

Corrosion can pose a silent threat to the longevity and efficiency of air conditioning units. Left unchecked, it can lead to reduced performance and costly repairs. HVACR coils are susceptible to corrosion due to their constant exposure to environmental factors and chemical substances. Being vigilant and proactive in monitoring the condition of your HVAC coils are best practices to corrosion prevention on your air conditioning unit.

Visual Inspection

Conduct a visual examination of the coil for any visible signs of corrosion, such as rust, discolouration, or pitting on the metal surface. Pay close attention to areas where moisture or condensation may accumulate, such as around joints and connections.


Check for any evidence of refrigerant leakage around the coil. Corrosion can cause holes or cracks to develop in the coil, leading to refrigerant leaks. Look for oil stains or residue on the coil or surrounding components, as these may indicate a leak.


Corroded HVAC coils may emit unusual odours, such as a musty or metallic smell, especially when the system is in operation. These odours can be a sign of microbial growth or chemical reactions occurring due to corrosion.

Reduced Performance

A simple solution to corrosion prevention is to monitor the performance of your air conditioning system for any noticeable changes, such as decreased cooling or heating efficiency, inadequate airflow, or uneven temperature distribution throughout your business. Corrosion can impair heat transfer efficiency and compromise the overall performance of the system.

Efficiency Metrics

Keep track of your energy consumption and utility bills over time. A sudden increase in energy usage or higher-than-normal utility costs could indicate underlying issues with the air conditioning system, including corrosion-related problems affecting its efficiency.

Proactively Protect Your Air Conditioner

One of the most innovative solutions to corrosion prevention is the THERMAL-XR® coating system. Powered by GMG Graphene, THERMAL-XR® offers a unique method of improving conductivity on corroded heat exchange surfaces while maintaining peak performance in new units.

THERMAL-XR® offers superior protection against corrosion, thanks to its graphene-based formulation that creates an impervious layer, preventing oxygen from reaching metal surfaces. Because of this, businesses can rest assured that their HVACR systems are well-protected and operating at peak efficiency.

Ready to experience the transformative benefits of high-quality anti-corrosion HVAC coil coating? Consider THERMAL-XR® as your solution of choice. Contact us today to learn more about and discover how THERMAL-XR® can revolutionise your maintenance practices.