Where Is The Evaporator Coil Located In A Furnace?

by | Last updated on January 24, 2024

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Unlike condenser coils that are located outside your home in the condensing unit, the are located

behind a panel on top of the furnace

.

Where are evaporator coils on furnace?

An evaporator coil is the part of an air conditioner or heat pump that absorbs the heat from the air in your house. It is located

inside the air handler or attached to the furnace

.

How do I find my evaporator coil?

The evaporator coil is

located inside or near the air handler where the blower fan is

. Evaporator coils are made from copper, steel, or aluminum because these metals conduct heat easily.

Does my furnace have evaporator coils?

It can sometimes be found inside your air handler but is

commonly located within the furnace itself

. … In most cases, the evaporator coil will work with both your air conditioner and your furnace, depending on which system you are using at any given time.

How do I know if my evaporator coil is bad?

  1. Air coming from the vents is warm.
  2. Air conditioner starts and stops frequently but doesn't properly cool your home.
  3. Air conditioner does not turn on.
  4. Refrigerant leak near the indoor cooling system components.
  5. Unusual noises from the cooling system, such as banging or hissing.

How do you clean an evaporator coil without removing it?


Use a compressed air canister

. One of the best ways to get the dirt and other debris out is to use compressed air. Blow the air into the coil to loosen the dirt. If there's stubborn dirt, though, you might need to put the nozzle close to the bottom of the debris, along its side.

What happens when evaporator coils are dirty?

An extremely dirty evaporator coil can cause your AC to breakdown completely. This happens when

condensation forms on the dirt and then freezes during the AC's operation

. The buildup of frost stops the heat transfer with the air in your home, which causes the air conditioner to stop cooling air at all.

How do I know what size evaporator coil I need?

Size: Evaporator coils come in sizes from about 1 ton of cooling/heating capacity to 5 tons of capacity for residential use. The size of the evaporator coil must be

matched to the size of the condensing unit outdoors

.

How often should evaporator coils be cleaned?

To minimize energy usage and reduce utility costs, the A/C coils should be cleaned

at least once a year

. It is estimated that dirty evaporator and condenser coils can increase the energy usage of your air conditioning system by over 30 percent.

What is the average cost to replace a evaporator coil?

Average Cost

$1,000
High Cost $2,000 Low Cost $600

Which is better'n coil or a coil?


N-shaped coils get much better

results, however, because they allow for more overall coil surface area inside the unit, allowing them to accommodate more refrigerant and absorb or release more heat — without requiring larger equipment.

Can a dirty furnace coil affect heating?

Dirty furnace coils are not as good at transferring heat energy, and you'll start to see your system's energy-efficiency dip. In severe cases, extremely

dirty coils can trap heat inside your furnace

, causing the system to overheat and trigging temperature failsafes that shut off the system entirely.

What happens if evaporator coil freezes?

A coating of ice on

the evaporator coils will prevent the coils from working properly

. Since they are no longer in contact with the surrounding air they will not be able to absorb that heat, and air coming out of the supply vents will be warm. This will interfere with the creation of cool air for indoor comfort.

Is it worth replacing evaporator coil?

Your AC is 8+ years (or older)

The efficiency of an AC unit is at its best for the first 10 to 12 years of its life. That said, if your AC is nearing 8 years old, replacing just the evaporator coil would be like putting a brand new engine into a dying car—

it's just not worth the money

.

Can evaporator coil leak be fixed?

The best choice to fix a leaking evaporator coil is

a replacement

, especially if it still under warranty. However, if this is not cost-effective for you at the moment, you can also try adding a sealant, which has about a 50/50 success rate.

When should I replace my evaporator coil?

The average lifetime of an AC is approximately 10 to 15 years. After 15 years, your AC unit will break down more often. If you just

serviced your unit a few months ago and something broke afterward

, it may be time to replace it. Some coil cleaners can also weaken and disintegrate the outer lining of evaporator coils.

Jasmine Sibley
Author
Jasmine Sibley
Jasmine is a DIY enthusiast with a passion for crafting and design. She has written several blog posts on crafting and has been featured in various DIY websites. Jasmine's expertise in sewing, knitting, and woodworking will help you create beautiful and unique projects.