Keeping your AC unit finely tuned requires regular maintenance. While some things like tightening electrical connections can be done by a homeowner, most tasks should be left to a professional.
Many minor problems are easy fixes that could add years to the life of your system. If you are able to catch these issues early, they can be dealt with before they become major concerns.
Check the Filters
Air filters are not only important for the air quality of your home but also for the proper functioning of your AC system. Dirty and clogged filters restrict airflow, which causes the AC to work harder. This increased workload leads to higher energy consumption and reduced cooling capacity. It can also shorten the lifespan of your air conditioning unit.
On the other hand, a clean filter increases airflow and lowers your energy costs. It also reduces allergens, such as pollen, dust mites, and pet dander, and helps eliminate odors. This is especially beneficial for allergy and asthma sufferers.
Before changing the filter, make sure that your AC is turned off. Then locate the filter and look for an arrow that indicates the correct direction of airflow. Once you’ve found it, remove the old filter and replace it with a new one. Remember to choose a filter that fits your needs, such as its size and MERV rating.
Check the Refrigerant
The refrigerant is what actually cools the air inside the unit. When the refrigerant level is low, the system will have to work harder to cool your home and this can lead to high energy bills. A technician will check the refrigerant levels and add more if needed.
The technician should also use HVAC diagnostic techniques such as visual inspection, pressure testing and leak detection methods like bubble tests or electronic sniffers. They will also look for things like ice on the outdoor condenser coil and copper refrigerant tubing.
If they suspect any issues with the refrigerant, they will evacuate and pressurize the system with nitrogen to check for any further leaks. They will then recharge the system with fresh liquid coolant and restore optimal performance back into your AC system!
Check the Thermostat
Thermostats are an integral part of the AC system. They are responsible for regulating temperatures inside residential spaces accurately according to the user settings on its interface panel. However, they are prone to malfunctions that can cause them to fail to respond to commands and produce faulty results. Professionals inspect and calibrate thermostats as an essential part of AC repair services.
They also check the level of refrigerant in the unit to detect any leaks and prevent overcharging which can damage the compressor and other components. This step is critical since overcharging can shorten the lifespan of an air conditioning unit by up to 10%.
They also check and clear the condensate drain line that removes condensation from the evaporator coils and helps to avoid clogs and water damage. This is particularly important for ductless mini-splits that lack a traditional evaporator coil and drain line. They can also help to reduce humidity in a home by cleaning the air filters and removing excess water from the indoor air.
Check the Ductwork
Over time, ducts can become dirty or contaminated with dust, pollen, pet dander, and other debris. Air filters help to prevent contaminants from entering the HVAC system, but these aren’t capable of removing 100 percent of them. When contaminants build up, the resulting pressure in your home can cause airflow problems.
During a regular inspection, an HVAC professional will check for leaking ducts and ensure that they are properly insulated. He or she may also recommend installing a UV light in the ductwork to sterilize the air, which helps to eliminate bacteria, viruses, and mold spores.
A well-maintained AC unit runs more efficiently, reducing energy consumption and saving you money on your utility bills. Routine maintenance can also extend the lifespan of your cooling system, delaying the need for a costly replacement. It’s worth the investment.
