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These days, more than 90 percent of homes and virtually all businesses in America use air conditioning to beat the summer heat. In fact, according to the US Department of Energy, air conditioners use about 6 percent of all electricity produced in the country. Given the overwhelming prevalence of AC, most people think they know how to properly maintain their system, whether it’s central air, window units, or ductless mini-splits. Many homeowners fall victim to common mistakes that waste energy, shorten the working life of their air conditioners, and cost money.
1. Buying the wrong size system
Always use An air conditioner that is the right size for your home. An oversized unit can turn on and off too quickly, making it ineffective at removing humidity and maintaining a uniform temperature. On the other hand, a very small unit will need to be run continuously, which will greatly shorten its lifespan. Determine your required cooling capacity by calculating the load, taking into account each room’s square footage, layout, insulation, function and typical occupancy.
2. Cooling an empty house
Because cooling an empty home wastes both money and energy, it’s a good idea to upgrade Programmable home thermostat. This technology allows you to raise and lower the temperature of your air conditioner based on a preset schedule, which can save hundreds of dollars annually. Increase your energy efficiency further by keeping closet and cabinet doors closed to prevent excess air from entering.
3. Poor condition of thermostat and vents
Inside your home, make sure the thermostat is positioned properly and the vents allow for proper air circulation. Keep the thermostat away from direct sunlight and heat producing lights and devices So you don’t get inaccurate readings and cause the air conditioner to work overtime. Do what you can to ensure AC vents are not blocked by plants, furniture or curtains.
4. Do not use fan for cold air circulation
If possible, combine your air conditioning with the use of strategically placed fans. Any type of fan helps cool the air circulating in your home, making you feel more comfortable in high indoor temperatures. Make sure Set the ceiling fan to run counterclockwise To push air downwards during summer. Note that you should also use it sparingly Exhaust fans in bathrooms And the kitchen when you run the AC, as this removes cold air from your home.
5. Keep your windows open when the AC is on
Open the windows And doors and windows invite moisture into your home and allow cool air to escape. Your air conditioner will have to work extra hard to compensate, wasting large amounts of energy along the way. Always keep doors and windows closed when the AC is on.
6. Forgetting to clean the filter
Clean or replace HVAC Air Filters Every month during the cooling season, and more often if the filter is found to be excessively clogged with dust and debris. A Clean the AC filter Significantly improves the efficiency of air conditioners, reducing your energy consumption by 5 to 15 percent. On central air conditioners, the filters are usually located on the return duct in the walls or ceiling. Room air conditioners have filters mounted in front-facing grills, while ductless mini-splits house their reusable filters in a removable panel. Consult your owner’s manual for specific air filter replacement instructions.
7. Allows debris to build up around the condenser
Outdoor condenser and evaporator coils can become clogged with dirt, which blocks airflow and insulates the coils, reducing their ability to manage heat effectively. To avoid clogging the coils, keep your AC components away from dryer vents and remove fallen leaves, grass clippings and other outdoor debris regularly. Trim shrubs and other foliage to provide at least 2 feet of space around the condenser, allowing for adequate airflow. Our guide to Cleaning the air conditioning coil Can help keep your condenser in tip-top shape.
8. Not attending regular maintenance
Properly maintaining your air conditioning equipment will increase its operating efficiency and effective lifespan. At the beginning of the cooling season, check the seal on the air conditioner as well as the seal between the unit and the house to ensure that cool air is not escaping. Then, check fuses, circuit breakers, wires and terminals for corrosion; Clean the condensate drain line; And inspect fans and other moving parts for signs of wear.
9. Placing the AC unit in direct sunlight
Although air conditioners are not the most attractive items in the landscape, homeowners should not try to “hide” their units in inappropriate places. The location of an air conditioner has a major impact on its energy efficiency. Try to install it in a shady location on the east or north side of your home, as too much direct sunlight will make the system more difficult. Additionally, do not place obscure shrubs or plants too close to the unit, as they will impede ventilation and may clog the condenser coils.
10. Not calling an HVAC professional when you need one
Some air-conditioning system problems, such as refrigerant leaks, can only be diagnosed and repaired by a qualified HVAC technician. have Have an HVAC professional inspect and tune up your system On a regular schedule, ideally annually. Will be much cheaper than a routine service call Cost of AC repair emergency
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