Greater Rochester Area


Twin Cities Metro


Serving the Greater Rochester Area and the Twin Cities since 1988

K & S Heating, Air Conditioning, Plumbing, LLC BBB Business Review

Why the Air Conditioner is Not Efficient



If your air conditioner seems to be running constantly, there are a few quick things you can do to either fix find the source of your problem. There are numerous reasons why your air conditioning system may seem to be running non-stop. Some of the reasons may indicate a problem with your system. Other issues may alert you to things that you can take steps to correct.

Unit Too Small

If your central air conditioner is too small, then it is going to have to work harder to cool your home. Over time, this will increase the wear and tear on your unit and reduce its life. The desired coolness may also never be reached in your home. Also, the system breaking down could happen.

Unit Too Large

If your system is too large, it will not work properly either. It will not effectively remove moisture from the air in your home. This will result in an output of moist, clammy air. It will actually have shorter run times than it should and use excessive amounts of electricity, resulting in higher utility bills.

The size of your ductwork should be relative to the size of your air conditioning unit. If your ducts are the wrong size, they may not be able to handle the airflow or distribute cool air efficiently to all parts of the home. 75% of air conditioning problems can be resolved by the correct method of installation in combination with the right sized air conditioning unit.

Check the Air Filter Regularly

If you have not changed the filter in awhile, it’s probably dirty restricting air flow. This will cut down on the amount of cool air your air conditioner can produce, which in turn will make your air conditioner seem to run more through the day. When your air filter is clogged, the air handler must work harder to compensate. A dirty filter makes your system work harder causing it to overheat. Cleaning the debris that builds up on your filters will aid with the flow of air. Clean or replace your filters once a month or as recommended by the manufacturer. Without enough air flowing over the coils, the system can’t remove humidity and cool the air to the set temperature, so it will keep running when it should not be.


K&S has been your trusted Heating, Air Conditioning, Plumbing and Electrical partner since 1988.

Count on our unmatched Experience and the Quality you know from K&S

4205 Highway 14 West

Rochester, MN 55901

(507) 282-4328

6513 Cecilia Cir.

Edina, MN 55435

(952) 697-4328

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