Maintenance of Mobile Evaporative Coolers: The Key to Consistent Performance and Long-Lasting Efficiency

Mobile evaporative coolers are an effective, sustainable and cost-efficient solution for cooling industrial, commercial, logistics and production environments. Thanks to their natural operating principle, they can reduce perceived temperature and improve workplace comfort while consuming significantly less energy than traditional air-conditioning systems. However, to ensure maximum performance over time, it is essential to carry out proper and regular maintenance of the equipment.

During normal operation, evaporative coolers use water and evaporative cooling pads to cool the air supplied into the environment. Over time, dust, pollen, limescale and other contaminants can accumulate inside the unit, affecting both system performance and the quality of the air distributed.

The frequency of maintenance mainly depends on the quality of the water used and the level of pollution or dust in the environment being cooled.

Regular maintenance helps to:

• maintain high cooling efficiency;
• ensure proper airflow;
• preserve the quality of the air supplied into the environment;
• reduce the formation of unpleasant odours;
• prevent malfunctions and operating issues;
• extend the service life of components;
• reduce operating costs and the need for extraordinary maintenance.

Routine maintenance activities are simple but essential to keep the evaporative cooler in the best possible operating condition.

Cleaning the evaporative cooling pads

The evaporative cooling pads are at the heart of the cooling system. The accumulation of dirt or limescale deposits can reduce evaporative cooling efficiency and restrict airflow. For this reason, regular inspections and cleaning are recommended using low-pressure water, while avoiding aggressive chemical products.

Cleaning the water tank and internal components

The water tank should be emptied and cleaned regularly to remove any sediment and impurities. During maintenance, it is also advisable to check the condition of the pumps, pipes, water distribution systems, float valves and level sensors.

Checking the dust filters

The filters should be cleaned regularly to prevent blockages and ensure proper air intake. In particularly dusty environments, maintenance may need to be carried out more frequently.

Cleaning the external housing

The external surfaces also require regular maintenance. A soft cloth and mild, non-aggressive cleaning products are sufficient to keep the unit clean and preserve its appearance.

In addition to routine checks during the summer season, thorough cleaning is recommended:

• before extended periods of inactivity;
• at the end of the operating season;
• before the unit is put back into service for the following season.

Seasonal cleaning helps remove dirt, limescale and impurities accumulated during operation, preventing them from affecting the system’s future performance.

Proper preventive maintenance helps reduce the risk of issues such as insufficient ventilation, reduced cooling capacity, water leaks, abnormal noise and unpleasant odours. Regular maintenance also makes it possible to identify potential problems at an early stage and keep the evaporative cooler operating efficiently throughout the hottest periods of the year.

To support companies and users in maintaining their equipment in optimal operating conditions, Art-Eco offers a professional maintenance and end-of-season cleaning service for both mobile and fixed evaporative coolers.

The service includes thorough cleaning of the evaporative cooling pads, water tank, water distribution systems, pipes and main internal components, as well as a general inspection of the equipment. The service is carried out by specialised personnel in accordance with the procedures specified by the manufacturer, helping to preserve system efficiency and extend its service life.

Thanks to scheduled maintenance and seasonal cleaning, companies can reduce the risk of breakdowns, maintain high cooling performance and start each new season with systems operating at peak efficiency.

Maintenance of evaporative coolers is not simply a good technical practice, but a genuine investment in operational continuity and energy efficiency. With simple cleaning procedures and regular inspections, it is possible to ensure consistent performance, improve air quality and maximise the return on investment over time.

Choosing a professional maintenance programme also means protecting the value of the system, reducing operating costs and ensuring maximum comfort in the workplace.