June 7, 2018 Tips and Advice

How to Help Your Air Conditioner Keep You Cool

With summer fast approaching, you know sweltering hot days aren’t far behind. The good news is your air conditioner is there to provide some relief. Just like any other piece of equipment, your AC unit needs some tender loving care to ensure it works as efficiently as possible. Your cooling system has components like filters, coils, fins, and drains that need to be regularly maintained. Negligence in caring for your AC results in reduced cooling capacity and damage to parts and the unit itself.

Marsh Heating and Air Conditioning is a reliable HVAC company in Plymouth MN that can help keep your AC in great shape, guaranteeing greater efficiency and improved comfort.

Here are a few essential guidelines to achieving a cooler indoor environment:


You AC’s filters are responsible for keeping dust, debris, and other particles from entering its interior components. Clogged and dirty filters restrict normal airflow and significantly reduce your air conditioner’s efficiency.

When normal airflow is limited, the air that bypasses the filter may carry dust and dirt directly into the evaporator coil and weaken its capacity to absorb heat. Replacing your filters on a regular basis will ensure your air conditioner operates efficiently.

When it comes to energy consumption, replacing a dirty and clogged filter with a fresh one can lower your cooling bills by 5 to 15 percent.

Check the type of filter your air conditioner is equipped with. There are AC units that are packed with reusable filters, while others need to be replaced regularly. They are also available in different types and efficiencies. For best results, clean or replace your air filters every month or two during the cooling season. If your unit is in constant use, you may need to check your filters more frequently, since it is forced to operate in more difficult conditions, especially if you have furry pets in the house.

Air Vents

Your goal of having a cooler house can be easily achieved simply by opening doors and registers in every room. These openings are usually found either on the floor or ceiling.

Making sure that there are no blockages such as beds, dressers, books, or other items to your registers will help achieve a more balanced airflow, which is critical to cooling systems. Maintaining at least a 12-inch clearance around it should do the trick.


Over its months and years of service, your air conditioner’s evaporator coil and condenser coil collect dirt, which makes the unit work harder. Keeping your filters clean prevents your evaporator coil from defiling quickly. However, in time, it will still collect dirt. This dirt compromises the airflow and insulates the coil, reducing its heat-absorbing capacity. Check your evaporator coil once a year and clean it as necessary to avoid such problems.

Your outdoor condenser coils can also collect dirt, particularly if the outdoor environment is dusty or if there are trees nearby. You can easily notice if there is dirt or dust buildup on your condenser coil fins. To allow for sufficient airflow around the condenser, clean the area at least 2 feet encompassing the coil.

Professional Air Conditioner Maintenance

While these simple guidelines can help you attain a more comfortable indoor environment, having a professional maintain your cooling system is still the best way to care for your HVAC equipment.

An HVAC professional can thoroughly inspect your AC unit and detect issues before they even become a problem. In addition, there are checks that only a qualified technician should perform such as:

  • Check the amount of refrigerant
  • Look for leaks with a leak detector
  • Properly capture any refrigerant that must be expelled from the system
  • Seal duct leakage in ducts
  • Calibrate the airflow through the evaporator coil
  • Confirm the proper electronic control sequence, making sure that your furnace and AC system don’t operate at the same time
  • Check electrical terminals
  • Inspect the tightness and wear of oil motors and belts
  • Check the accuracy of the thermostat

Need Help? Call the Cooling Experts

Keeping your AC unit properly maintained not only gives you greater comfort, it also extends the life of your investment. If you need professional help in achieving a cooler home during the hot months, call Marsh Heating and Air Conditioning.

We have the experience, knowledge, and more importantly, the right people to get the job done. We won’t leave your home until you are absolutely satisfied.

We are your dependable Minnetonka heating and air conditioning contractor keeping you comfortable since 1974.