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Why Does an A/C System Stop Making Cool Air?

Posted: June 26, 2017

One of the most common problems we see is an air conditioning system that runs but fails to generate any cool air. When we dispatch our technician on a call like this, he will begin his diagnosis by checking out these typical causes:

* obstructed airflow blockage, in the ductwork or filters

* dirty evaporator coil

* system controls: the thermostat and blower fans need to be set correctly and operating properly.

In some cases, our technician may find an ice build-up on the evaporator coil and stains on the refrigerant piping. This usually indicates a loss of refrigerant. A few tests will confirm this. If a system has lost too much refrigerant, it can no longer cool the home properly.

The technician’s solution: use a detector to find and fix a leak in the refrigerant line. Next, he will “recharge” the system with the proper amount of refrigerant so cool air can flow again.

If you have an old system that uses R22 refrigerant, which is becoming scarce, adding more refrigerant can be a costly expense. Please contact us to check out all your options and see how much you could save with an upgrade to a high-efficiency system that uses environmentally friendly, less costly refrigerant.