HONEYWELL L4064B3259 Furnace Fan Limit Control Switch Stem 11.5

( Brand: Honeywell ), ( Manufacturer Part Number: L4064B3259 )

Review HONEYWELL Furnace Fan And Limit Control Switch 11.5 Inch Stem

Introducing the Honeywell L4064B3259 Furnace Fan Limit Control Switch, a crucial component for maintaining optimal performance and efficiency in your HVAC system. This replacement switch is specifically designed for Honeywell L40 series gas and oil furnaces, making it an excellent choice for those seeking a reliable and authentic part.

The fan limit control switch plays a significant role in the safety and functionality of your furnace. It regulates the fan operation by monitoring the temperature of the furnace heat exchanger and limiting the fan to run only when the heat exchanger has reached a safe temperature. This feature prevents the fan from operating when the heat exchanger is still hot, reducing the risk of damage and ensuring the longevity of your furnace components.

The Honeywell L4064B3259 measures 11.5 inches in length, making it a perfect fit for most Honeywell L40 series furnaces. It is engineered with a durable 11.5-stem design, ensuring a secure connection and reliable operation. The switch is easy to install, requiring no additional wiring or modifications to your existing system.

The L4064B3259 is manufactured under stringent quality control standards to ensure a precise fit, reliable performance, and longevity. It is an OEM (original equipment manufacturer) replacement part, meaning it is an exact match to the original part in terms of dimensions, electrical specifications, and performance.

In summary, the Honeywell L4064B3259 Furnace Fan Limit Control Switch is an essential component for ensuring the safety, efficiency, and longevity of your HVAC system. It is a direct OEM replacement for the L40 series gas and oil furnaces, featuring an 11.5-stem design and easy installation process. Trust Honeywell for genuine quality and performance.

Pros and Cons of Buying Honeywell L4064B3259 Furnace Fan Limit Control Switch

The Honeywell L4064B3259 is a furnace fan limit control switch designed for use in Honeywell gas and oil furnaces. This component is essential for regulating the fan operation to maintain optimal indoor comfort and energy efficiency. In this analysis, we will discuss the primary advantages and disadvantages of purchasing this Honeywell part.

1. OEM Compatibility: The Honeywell L4064B3259 is an original equipment manufacturer (OEM) part, ensuring it is designed specifically for Honeywell furnaces. This guarantees a perfect fit and compatibility with the system.

2. Improved Fan Control: A malfunctioning fan limit control switch can lead to continuous fan operation, resulting in higher energy bills and decreased comfort. Replacing the faulty switch with a new one, like the Honeywell L4064B3259, can restore proper fan control and save energy.

3. Enhanced Safety: Proper fan control is essential for safe furnace operation. A faulty fan limit control switch can cause the furnace to continue running even when the temperature has reached the desired level, potentially causing overheating and safety hazards. Replacing the switch ensures the system functions correctly and safely.

4. Longer Lifespan: Installing a new Honeywell fan limit control switch can add years to the lifespan of the furnace, as a malfunctioning switch can lead to other components wearing out more quickly.

1. Cost: The Honeywell L4064B3259 fan limit control switch may be more expensive compared to aftermarket alternatives. However, the cost can be justified by the OEM compatibility, improved fan control, enhanced safety, and longer lifespan it offers.

2. Installation Complexity: Depending on the user's experience and the complexity of their furnace system, installing the switch may require professional assistance, which could add to the overall cost.

The Honeywell L4064B3259 furnace fan limit control switch is an essential component for maintaining optimal indoor comfort and energy efficiency while ensuring safe furnace operation. Although it may come with a higher cost compared to aftermarket alternatives, the OEM compatibility, improved fan control, enhanced safety, and longer lifespan it offers make it a worthwhile investment for Honeywell furnace owners.

If you own a Honeywell gas or oil furnace and suspect your fan limit control switch is malfunctioning, it is recommended to replace it with a genuine Honeywell part, such as the Honeywell L4064B3259. While the cost may be higher than aftermarket alternatives, the benefits it provides in terms of compatibility, fan control, safety, and longevity make it a wise investment for Honeywell furnace owners.

Details:

As a product from the trusted brand Honeywell, it ensures quality and reliability in controlling furnace fan limit functions. The Honeywell L4064B3259 Furnace Fan Limit Control Switch features an 11.5 stem for easy installation and operation.

part #: l4064b3259 prices

• $45.00-$141.95

specifications aerationaura:

• brand: Honeywell
• manufacturer part number: L4064B3259

general aerationaura:

• Home Improvement > Heating, Cooling Air > Other Heating, Cooling Air
• condition: Used

seller aerationaura:

• rating: 99.1%
• city: Dillonvale, Ohio
• # reviews: 10807

offer aerationaura:

• best offers: True
• sold: 0
• quantity: 1
• availability: In Stock
• started: April 17, 2026
• options: Ship-to-home

shipping aerationaura:

• class: Standard
• carrier: USPS
• cost: $14.00
• type: Calculated
• service: USPS Ground Advantage
• transit: 5-11 Days

returns aerationaura:

• policy: No Returns

payments aerationaura:

• other
• wallet: Apple-pay
• credit card: Diners-club

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