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How often should split system air conditioners be serviced?

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Split system air conditioners are an essential part of our daily lives, used to keep our indoor environments comfortable. They help regulate the temperature in a room or an entire building and are designed to provide comfort during the hot summer months. However, like other electrical appliances, they require regular maintenance to continue to function properly. The frequency of service for a split mini air conditioner depends on several factors, including frequency of use, location, and environment.

Why should split system air conditioners be serviced? 

Here are some of the reasons:

1. Improved performance: Maintaining a split system air conditioner ensures that its filters, compressor, coils, and other components are cleaned, repaired, and replaced. This helps ensure that it cools and heats as effectively as it should.

2. Reduce energy consumption: Dirty and clogged filters, evaporators and condensers of a mini split unit air conditioner can reduce its efficiency, resulting in increased energy consumption.

3. Extend the life of the unit: Regular service and maintenance can also help improve performance and components will last longer, reducing the need for future repairs and replacements.

4. Maintain air quality: Split system air conditioners draw air from the room and recirculate it. If left uncleaned, air quality can be compromised, leading to the proliferation of bacteria and germs that can cause health problems.

How often should split system air conditioners be serviced?

There is no one-size-fits-all answer to this question, as the frequency of servicing a mini split air conditioner and heater depends on several factors. However, it is recommended that split system air conditioners should be serviced at least once a year or as recommended by the manufacturer. 

Factors that can affect the frequency of servicing air conditioner split include the following:

1. Type of environment: In industrial environments, areas with heavy traffic or high dust levels, it may be necessary to service the unit more frequently than once a year, such as once every half month. This is because such environments are characterized by an increase in air pollution, which will affect the working efficiency of the split system air conditioner.

2. Use: If the mini split system air conditioner is used frequently or year-round, it is advised to service it once every 2 months to ensure its efficient operation and prolong its life.

3. Age of the unit: Older mini split heater air conditioner may need to be replaced altogether.

4. Location: The location of the split system air conditioner can also affect its service frequency.   If the unit is installed in an area with high humidity or saltwater, it may corrode more easily, requiring more frequent service.

5. Type of filters: The type of filters used in the mini split unit air conditioner may also affect the recommended service frequency. If the unit uses washable filters, they should be cleaned and serviced every three months. Non-washable filters should be replaced every three to six months.


Split system air conditioners are valuable assets that require proper maintenance to function properly and efficiently. Regular service and maintenance can help extend the life of the unit and improve its efficiency. The frequency of service for a split system air conditioner will vary depending on factors such as use, environment, location, age, and type of filters used. Therefore, it is important to follow the manufacturer’s recommendations and always consult with a professional for the best service frequency based on your specific situation.

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