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| Chicago Air Conditioning Indoor Services... |
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Choose Your Cooling Service Request:
Outdoor AC Units | Indoor AC units | Install - Replace
- Cooling Coil (Evaporator Coil) Basics
A cooling coil which is blocked by debris or ice and frost, or which is damaged can obstruct air flow and reduce air conditioning system output.The air conditioning system evaporator coil and problems include ice and frost build-up, dirt blocking air flow
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- How To Inspect, Test, & Diagnose Cooling Coil:
Where to look for cooling coil problems: First, make a visual inspection of the cooling coil. Most air handlers provide an access panel or cover that can be removed to give at least partial view of the cooling coil surfaces. Turn off electrical power to the system to be safe from electrical shock. On opening an access cover or panel on the air handler you can recognize the cooling coil from our photos and sketches shown here and elsewhere on this website. You may need to use a flashlight and mirror to see the coil surfaces.
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- Here are some common defects to look for:
Dirt or debris blocking air flow through the coil, Ice or frost formation blocking air flow through the coil, Damaged cooling / evaporator coil fins over more than 10% of the coil surface, Evidence of refrigerant leaks,
mold growth on organic debris.
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