How Long Does It Take To Replace An Evaporator Coil?

How Long Does It Take To Replace An Evaporator Coil

The evaporator coil stands as a crucial element within the air conditioning system, and the proper functioning of the air conditioner is contingent upon it. When considering the duration required to replace an evaporator coil, it typically takes 2-3 hours. However, this timeframe can vary due to factors such as accessibility and unit size.

In this article, we explore the common issues associated with evaporator coils and provide insights into their resolution, ensuring an in-depth understanding of the topic.

How Long Does the Evaporator Coil Last, and When Should It Be Replaced?

With routine maintenance and proper care, evaporator coils can endure for 10-15 years, aligning with the lifespan of the air conditioning system. However, neglecting maintenance can significantly reduce the longevity of these coils. Beyond the 15-year mark, air conditioners tend to face increased instances of failure, prompting consideration for replacement.

It’s essential to be mindful of the impact of coil cleaners on the outer lining of evaporator coils. Continued use of certain cleaners can lead to gradual damage. Consequently, users are advised to research and select cleaners that are safe for use.

To ensure proper maintenance, readers are encouraged to refer to a guide on how to thoroughly clean evaporative coils.

What Is the Average Cost of Replacing an Evaporator Coil?

The cost of replacing an evaporator coil varies based on factors such as AC brand, unit size, and location. Replacement costs typically range between $600 and $2,000, with an additional average labor cost of around $700. The specific costs for different unit sizes are outlined as follows:

– Two tones: $550
– 2.5 tones: $675
– Three tones: $825
– 3.5 tones: $925
– Four tones: $1,000
– Five tones: $1,075

Is It Possible to Replace the Evaporator Coil Personally?

While it is conceivable to replace the evaporator coil independently, it is strongly recommended to enlist the services of a professional. For those interested in a do-it-yourself approach, a step-by-step guide is provided for guidance, encompassing actions such as turning off the AC, disconnecting, inspecting, and replacing the coil, among other steps.

Problems and Solutions with Evaporator Coils

Common issues faced by evaporator coils include leaks, and the article delves into the causes and solutions for such problems.

Is It Possible to Repair an Evaporator Coil Leak?

Though repairing an evaporator coil leak is possible with a sealant, success rates are 50/50. The article advocates for the replacement of the evaporator coil as the preferred option, particularly if the device is still under warranty.

What Causes Evaporator Coil Leaks?

The most prevalent cause of evaporator coil leaks is rusting on the copper tubing outside the coil. This rusting is attributed to the accumulation of formic acid within the coil due to the mixture of VOCs, water, and copper from the internal air.

Detecting Evaporator Coil Leaks

Indicators of an evaporator coil leak include warm air emissions from ventilation slots, frequent cycling of the air conditioner without effective cooling, failure of the air conditioner to turn on, refrigerant leaks near the indoor cooling system, and unusual noises emanating from the cooling system.

What Causes Evaporator Coil Freezing?

A lack of airflow is the primary cause of evaporator coil freezing, often attributed to a clogged air filter, a dirty evaporator coil, or slow fan speed. The article suggests consulting an expert for resolution but provides steps for users to address the issue themselves temporarily.

Distinguishing Between Condenser Coils and Evaporator Coils

Evaporator and condenser coils serve opposing functions within the air conditioning system. The evaporator coil extracts heat and moisture from the room air to cool it, while the condenser coil expels heat to the outside. The article clarifies the distinctions in their placement and functions.

Conclusion: Replace the Evaporator Coil with Confidence

Having gained insights into the fundamentals of evaporator coils, readers are encouraged to undertake regular maintenance and inspections of their air conditioning systems to prevent coil damage. Whether opting for a DIY approach or seeking professional assistance, a thoughtful decision can be made to ensure the longevity and efficiency of the evaporator coil.

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About the author


I am Ben , a seasoned HVAC specialist with over 6 of experience in the HVAC industry. I holds HVAC Certification and has a proven track record in providing expert advice on HVAC systems.