Evaporator Coil Leaks and How to Stop and Prevent Them
Evaporator coil leaks can be a sneaky way for your home’s A/C to lose its cool. By knowing what to look for in the event of a leak, you and your HVAC technician will be able to tackle the problem with little to no sweat.
What Causes Evaporator Coil Leaks?
Formicary corrosion is one of the most common causes of evaporator coil leaks. This happens when volatile organic compounds (VOCs) from common household products interact with the copper evaporator coils within the moisture-laden confines of your indoor A/C cabinet.
The end result is formic acid, a corrosive byproduct that eats away at the copper metal. Over time, this produces microscopic pinhole leaks that allow refrigerant to escape. Formic corrosion is most common in humid southern climates, especially in the Jacksonville area.
How Can You Stop Leaks?
One surefire way of preventing coil leaks involves swapping out the unit’s current copper coil with an aluminum replacement. An aluminum evaporator coil provides the same level of effective performance but with greater resistance against formic corrosion.
As a preventative measure, your HVAC technician may suggest installing an ultraviolet (UV) lamp near the evaporator coil to help break down VOCs and prevent mold and mildew growth. You may also need stronger air filtration to prevent future instances of corrosion.
In the meantime, your HVAC technician may add stop leak to the refrigerant as a temporary measure while repairs are underway.
For more information on evaporator coil leaks, contact Mike Merritt Heating & Air Conditioning. We proudly offer 100-percent satisfaction throughout Jacksonville, Orange Park and the surrounding areas.
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