Best Air Conditioning Fan Relays of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 2, 2025

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Air conditioning fan relays are essential components in the cooling system of an air conditioning unit. They act as switches that control the operation of the fan, which is responsible for circulating cool air throughout the room. These relays are designed to regulate the flow of electricity to the fan motor, ensuring that it operates at the right speed and temperature. They are typically made from high-quality materials that can withstand the rigors of continuous use and are available in a range of sizes to fit different types of air conditioning units. Installing a reliable fan relay can help ensure optimal performance and efficiency of your air conditioning system.

At a Glance: Our Top Picks

ACDelco 15-81090 Fan Motor Relay Cover #TOP 1
ACDelco 15-81090 Fan Motor Relay
ftb score rating icon 9.8
Tbest 30 Amp Relay 12V 4 Pin Cover #TOP 2
Tbest 30 Amp Relay 12V 4 Pin
ftb score rating icon 9.7
Derale Electric Fan Dual Relay Wire Harness Cover #TOP 3
Derale Electric Fan Dual Relay Wire Harness
ftb score rating icon 9.5

Top 10 Air Conditioning Fan Relays

#TOP 1

ACDelco 15-81090 Fan Motor Relay

15-81090
ACDelco 15-81090 Fan Motor Relay Cover
ACDelco Professional 15-81090 Air Conditioning Condenser Fan Motor Relay

The ACDelco 15-81090 Fan Motor Relay is a professional, premium aftermarket replacement that provides the performance and dependability you expect from ACDelco. This relay is manufactured to meet expectations for fit, form, and function, making it a reliable choice for your air conditioning system. With this fan motor relay, you can ensure that your air conditioning condenser fan operates smoothly and efficiently. It is designed to regulate the power supply to the fan motor, preventing any overheating issues and ensuring optimal cooling performance. By using the ACDelco 15-81090 Fan Motor Relay, you can enjoy a comfortable and cool environment in your vehicle, especially during hot summer days. With its high-quality construction and compatibility with various air conditioning systems, this relay is a convenient and reliable solution for your cooling needs.

What We Like
Premium aftermarket replacement
Dependable performance
Optimal cooling efficiency
#TOP 2

Tbest 30 Amp Relay 12V 4 Pin

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Tbest 30 Amp Relay 12V 4 Pin Cover
Foocle Fls821 Relay,30 Amp Relay 12V 4 Pin,4 Pin Relay 12V 10A,Heavy Duty Enclosed Fan Relay,ABS Replacement Heavy Duty Switching Fan Relay 12V 40A 12v Fan Relay fls821 Relay

Tbest 30A Relay is a versatile motor switch designed for both residential and commercial spaces. It seamlessly switches between single or two-speed fan motors, making it the perfect solution for all your heating and cooling needs. The compact and durable design, enclosed in high-quality ABS plastic, ensures long-lasting durability. With easy installation, replacing a broken switch is hassle-free, allowing you to get your HVAC systems up and running again in no time. Upgrade your heating and cooling system with Tbest 30A Relay and enjoy the benefits of smooth and efficient operation. Experience unbeatable performance and superior stability with this high-performance motor switch, designed to meet the demands of your HVAC system.

What We Like
Versatile
Compact and durable
Easy installation

Derale Electric Fan Dual Relay Wire Harness

16765
Black
Derale Electric Fan Dual Relay Wire Harness Cover
Derale 16765 Electric Fan Dual Relay Wire Harness, Black

This wire harness is designed for air conditioning fan relays and rated at a maximum of 25 amp continuous draw per each relay (total of 50 amps). It does not include fuses, but comes with an AC override circuit for each relay, providing convenience to users.

What We Like
Can handle a maximum continuous draw of 50 amps
Comes with AC override circuit for each relay
Designed specifically for air conditioning fan relays
#TOP 4

Hoypeyfiy 13500114 Air Conditioner Relay

HMY668
Hoypeyfiy 13500114 Air Conditioner Relay Cover
Hoypeyfiy 2Pcs Relay 13500114 Air Conditioner Fan Relay 12088567 12VDC 40A 4Pins Replacement for GM Buick GMC Cadillac Hummer

The Hoypeyfiy AC Fan Relay is a reliable replacement part compatible with various GM vehicles, including Buick, Cadillac, and GMC. It features multiple part numbers, ensuring it fits your specific model. Built to high-quality standards, this relay is designed for durability and dependable performance, providing you peace of mind. The package includes two relays, offering great value and convenience for your repair needs. Plus, with a strong focus on customer satisfaction, any issues you encounter will be addressed promptly and effectively.

What We Like
Multiple vehicle compatibility
Durable and reliable
Includes two relays
Customer satisfaction focus
#TOP 5

Klanata 12V 40A Car Relay

Klanata
Klanata7753
Klanata 12V 40A Car Relay Cover
Klanata Car Relay, 12V 40A ABS Automotive Fan Relay Replacement Heavy Duty Switching Fan Relay for Ensuring Stable Operation of The Air Conditioning System

The Klanata Car Relay is an essential component for your automotive air conditioning system, ensuring your fan operates efficiently whether it's a single or dual-speed motor. Its compact and fully enclosed design protects against dust and moisture, making it suitable for various vehicle heating and cooling applications. Constructed with lightweight and durable ABS plastic, this relay can withstand the demands of different automotive environments. With its reliable performance, you can count on accurate and quick fan motor switching, enhancing your overall driving comfort.

What We Like
Efficient fan operation
Compact and dust-resistant
Durable ABS construction
Reliable performance
#TOP 6

Tecsunjia 95224-2D000 Automotive Relay

Tecsunjia
95224-2D000
Tecsunjia 95224-2D000 Automotive Relay Cover
95224-2D000 DC12V 20A 4pins Automotive Car Fan Air Conditioning Relays-2pieces

The Tecsunjia Automotive Relay is designed to operate efficiently at a coil voltage of 12 VDC, making it ideal for automotive applications. With a current capacity of 20A, it ensures reliable performance for your car's fan and air conditioning systems. This relay features four pins, simplifying installation and maintaining a stable connection. The package includes two relays, giving you a backup or allowing you to service multiple components in your vehicle. Using this relay can enhance the functionality of your car's cooling system, ensuring comfort during hot weather.

What We Like
High current capacity
Reliable 12 VDC operation
Easy installation
Includes two relays
#TOP 7

Alikkash 25230-9F915 12VDC Relay

Alikkash
25230-9F915 12VDC 4Pin
Alikkash 25230-9F915 12VDC Relay Cover
Multi-Purpose Relay 25230-9F915 12VDC 4 Pins Radiator Fan Relay Cooling Fan Relay

The Alikkash 12V Relay is designed for reliability and efficiency. Its high-quality coil provides excellent conductivity, ensuring long-lasting performance even under heavy use. With the ability to handle high contact voltage and substantial coil capacity, this relay is perfect for high current applications, giving you peace of mind in demanding situations. The straightforward 4-pin configuration allows for quick and easy installation, saving you time and reducing costs. Additionally, its universal application means you can use it in various automotive systems, from cooling fans to headlights, enhancing your vehicle's functionality.

What We Like
Reliable coil design
High contact voltage capacity
Easy installation
Universal automotive use
#TOP 8

Akozon Fan Relay FLS821

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Akozon Fan Relay FLS821 Cover
Fan Relay, Replacement Heavy Duty Switching Fan Relay 12V 40A for Relay fls821

The Akozon Fan Relay is designed to efficiently control your air conditioner's operation. It features a compact and sealed design that ensures it can handle both heating and cooling applications. You will appreciate the precision control it offers, allowing you to manage the relay with a small current, which helps protect against larger currents. Additionally, its high-quality materials make it wear-resistant, waterproof, and dustproof, ensuring durability in various environments. This means you can rely on it for a longer service life while enjoying a comfortable driving experience.

What We Like
Durable, high-quality materials
Compact and sealed design
Precision control for efficiency
Adaptable for different fan speeds
#TOP 9

Fevas Car Relay 95230-2P020

Fevas
ACS-C97A7F4E00A184EDB1F43B00A65B7D43
95224-2D000
Fevas Car Relay 95230-2P020 Cover
Fevas Near High Beam Fan Air Conditioning Car Relay 95224-2D000 DC12V 95230-2P020 20A - (Color: 95224-2D000)

The Fevas Car Relay is designed for use in air conditioning fan systems, ensuring efficient operation in your vehicle. With a model number of 95230-2P020, this relay helps maintain optimal cooling performance, which is essential for comfort during warm weather. Its durable construction ensures reliability, so you can trust it to perform consistently when you need it most. Additionally, its easy installation process makes it convenient for users, allowing you to quickly replace your old relay without complicated tools or procedures.

What We Like
Efficient cooling performance
Durable and reliable
Easy installation
Designed for air conditioning
#TOP 10

Estink Heavy Duty Fan Relay

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Estink Heavy Duty Fan Relay Cover
Automotive Fan Relay, 12V 40A ABS Car Fan Relay Replacement Heavy Duty Switching Fan Relay for Heating and Cooling Applications, Black, Enclosed Shelter Design

The Estink Fan Relay features a compact and fully enclosed design, making it ideal for both heating and cooling applications in your vehicle. This relay is specifically designed to switch between single or two-speed fan motors, providing versatility for various cooling needs. Made from durable ABS plastic, it resists wear and tear, ensuring long-lasting performance. With its high-performance capabilities, you can expect strong stability, even under challenging conditions. Plus, the installation process is straightforward, allowing you to easily replace a broken relay without hassle.

What We Like
Durable ABS material
Compact enclosed design
Easy installation
High performance
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are the symptoms of a bad fan relay?

Some common symptoms of a bad fan relay include engine overheating, fans not starting, poor or no air conditioner performance, and the fan not turning off.

2. What happens when AC relay goes bad?

When an AC relay goes bad, it can result in a weakened or intermittent power supply to the compressor, leading to poor performance of the air conditioner. The system may work fine at times and stop working at other times.

3. How much does it cost to replace an AC relay?

The cost of replacing an AC relay typically ranges between $150 and $300. However, it is important to note that costs may vary depending on factors such as the specific relay switch being replaced and labor charges.

4. What does the AC fan relay do?

The AC fan relay is responsible for supplying power to the fans, allowing them to circulate warmed air in a blower motor. It acts as an on/off switch, controlling the flow of current between the power source and the motor, and plays a crucial role in the heating process of HVAC systems.

5. What causes an AC relay to fail?

AC relays can fail due to worn-out electrical contacts from constant use or overheating caused by excessive electricity flow. Faulty parts in the AC system can also contribute to relay burnout, leading to melting of the plastic housing or other damage.

6. What would cause an AC relay to burn out?

AC relay burnout often occurs due to abnormal heat generation around the contacts. Factors that can contribute to this include continuous arcing and melting of the resin caused by contact vibration during ultra-frequent switching.

7. How long do AC compressor relays last?

The life of an AC compressor relay is measured in cycles, typically rated for around 50,000 cycles. For the average driver, this usually translates to approximately ten years of driving before the relay may need replacement.

8. Can a bad cooling fan relay cause AC not to work?

Yes, a bad cooling fan relay can cause the AC not to work properly. If the AC condenser fan relay fails, the condenser fan will not receive power, leading to insufficient cooling of the refrigerant and resulting in the AC blowing hot air instead of cold air.

Editor's Notes

During our air conditioning fan relay research, we found 24 air conditioning fan relay products and shortlisted 10 quality products. We collected and analyzed 4,223 customer reviews through our big data system to write the air conditioning fan relays list. We found that most customers choose air conditioning fan relays with an average price of $11.64.

The air conditioning fan relays are available for purchase. We have researched hundreds of brands and picked the top brands of air conditioning fan relays, including ACDelco, Tbest, Derale, Hoypeyfiy, Klanata. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.