Many problems we find on air conditioning service calls are related to lack of air flow through the indoor evaporator coil. Unfortunately we see a lot of undersized duct work installed in newer homes and condos. Closing supply registers to try and adjust temperatures from room to room or between floors can cause the air flow to become low enough that the evaporator coil begins to "ice up". As the ice builds, air flow is reduced further and eventually the coil becomes a solid block of ice.
Many systems with inadequate air flow might not ice up to the point where the homeowner will notice it. The evaporator might only be frosting and melting in the off cycles. While this usually doesn't result in an immediately noticeable lack of cooling, it causes excessive wear and tear on the compressor and reduced capacity, and in many cases compressor failure. This is one of the many seemingly small problems we check for when performing our thorough 20 point maintenance procedure.
Try and keep your registers and air intake grills clear especially in air conditioning season when your furnace blower runs at a higher speed than heating mode. We can solve imbalance and poorly designed duct work systems in most homes and businesses. Have your system professionally cleaned and checked this spring and avoid higher than necessary energy bills, and increase the performance and longevity of your central air conditioning system.
Call Perri-Aire for fast, quality HVAC service in Chicago-land at 773-777-4888.
