Experts warn that small mistakes such as neglecting filters and improper use can shorten air conditioner lifespan and increase electricity bills. Proper maintenance and correct operation are key to optimal cooling and cost savings during summer.
Air conditioners are often left running for much of the summer, but experts say small mistakes can shorten their service life and push up electricity use. According to the Russian outlet Lada.kz, climate equipment specialist Andrey Novikov warned that the most common problems are avoidable: blocked filters, open windows, poor airflow direction, excessive switching on and off and delayed servicing. Consumer Reports and other home-care guides make similar points, linking those habits to weaker cooling performance and faster wear.
One of the clearest risks is a dirty filter. Dust and pet hair build up quickly, restricting airflow and forcing the compressor to work harder. Consumer Reports says a clogged filter is among the most common causes of poor performance, while Bob Vila notes that neglected filters can raise energy costs and reduce the lifespan of the unit. Novikov said filters should be cleaned roughly every two to four weeks during heavy summer use, a timetable that is broadly in line with seasonal maintenance advice from Direct Energy.
Running the unit with windows open is another frequent error. In that case, warm outside air keeps entering the room, so the system has to run almost continuously to hold the set temperature. Home and garden specialists also point out that constant thermostat changes can create unnecessary strain, while setting temperatures far too low does not cool a room faster, only for longer. Ideal Home recommends keeping the thermostat in a moderate range rather than driving it down aggressively.
Novikov also advised against repeatedly turning the air conditioner on and off. Frequent starts place extra pressure on the compressor, which is one of the most expensive parts to replace. For longer periods of cooling, the better approach is to choose a comfortable temperature and let the system maintain it. He added that the airflow should not be aimed straight down; directing it upwards or along the ceiling helps distribute cool air more evenly through the room.
Regular servicing remains essential even when the unit appears to be working normally. Novikov recommends a professional inspection at least once a year, ideally before the hottest part of the season. Consumer Reports and Direct Energy similarly advise routine maintenance, including checking filters, vents, ducts, refrigerant lines and outdoor components. If an air conditioner starts making unusual noises, gives off a bad smell or cools less effectively, specialists say the problem should be checked promptly rather than left to worsen.
Disclaimer: This content is intended for informational purposes only. Readers are advised to exercise their own judgement, conduct due diligence, or consult a qualified expert before acting on any information provided.
