How frequent you maintain your air conditioner depends on the type you have in your home. For domestic units that are not in constant use, which are used for only cooling, it is required that you service it once a year.

Office units, on the other hand, need to be maintained at least twice a year in order for it to work efficiently. If your air conditioner is in an area with very high levels of contaminants and pollution, such as the kitchen, you need to carry out more regular maintenance.