A portion of every Stream33, Breeze33, Craft33, and Bright33, purchase will be donated to your local Feeding America foodbank. Famous Supply will also make product donations to Habitat for Humanity. All to help make our dream of better local communities become a reality.Learn More
Stream33 offers high quality plumbing products priced right. From bathroom and kitchen products to pre-assembled installation kits and behind-the-wall products, you can count on Stream33 for convenience, quality and value.Learn More
Breeze33 offers high quality HVAC and air distribution products that are priced right. From mini split systems to room air conditioners and dehumidifiers and registers, you can count on Breeze33 for convenience, quality and value.Learn More
Craft33 offers high quality all-wood cabinetry that is priced right. Styles from transitional to modern and traditional, you can count on Craft33 cabinets to compliment your clients’ lifestyle and budget.Learn More
Bright33 offers high quality LED lighting products priced right. Discover indoor and outdoor LED lighting options from undercabinet to ceiling and vanity, you can trust Bright33 for convenience, quality and value.Learn More
Famous Supply has over 45,000 products in stock with experts to serve the residential, commercial, institutional & industrial markets.Learn More
Find solutions tailored to meet your professional plumbing, HVAC, and building company needs. We offer a wide range of programs and services to help customers streamline daily operations. See what Famous Supply can do for you.Learn More
With 31 Famous Supply locations in Ohio, western Pennsylvania, and West Virginia, your local Famous counter has everything you need to help you get your project done. Famous’ greatest asset is our quality Associates dedicated to serving you, our valued customer!
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With over 45,000 SKUs in stock, Famous Supply specialized in HVAC, plumbing, industrial, building products, and training. We sell into the residential, commercial and industrial market segments for new construction, replacement, repair, remodel, parts and service.Learn More
Famous Supply can help you with specifications, product options at various price points, design, layout, scheduling and coordination of your project from A to Z. We are your one-stop shop for HVAC, plumbing, cabinets, countertops, appliances, lighting, windows and doors.Learn More
May 31, 2016 Jeff Rosenblum
We have all seen or diagnosed a bad or poorly performing evaporator coil. Over my years in the eld, I have diagnosed bad coils and the reasons why they fail can be surprising. So why do they fail? Here are a few things we have seen.
Coil plugging. When filters are neglected, the dirt can bypass the filter and plug up the evaporator coil. This will restrict the airflow and cause poor heat transfer. How do you combat this problem? Maintenance and proper filter design will usually solve this. Change the filter often, make sure it is sized correctly and the static pressure drop is not excessive, and verify there is not air bypassing the filter.
Vibration. If the coil is sitting on top of an air handler and the blower is out of balance, the vibration can cause the coils to crack and fail. Make sure there is not excessive vibration being transmitted through the system.
Corrosion. This has been a big one lately. We all hear about corrosion of coils. This is a big reason why they fail. Sometimes, if the coil is in a corrosive environment, a coated coil may be needed to resolve this. Look at where this system will be installed and take the necessary precautions.
Freeze ups. Allowing the coil to freeze and thaw and freeze and thaw several times can cause failures with the coil. I always tell people that if ice can move a mountain it can crack a coil. Make sure the refrigerant charge is correct and most importantly, the airflow is right.
System Design. If the system was never properly designed right in the first place, or the wrong coil was chosen for the application, you can expect the coil to fail well before its time comes.
So these are 5 reasons why a coil can fail. As always, if you have any questions please feel free to contact the Famous Supply HVAC Tech department.
17 Years Industry Experience
Cell (330) 962-2491