LENNOX 11U72 Pressure Switch 0.90WC 104371-09

( Brand: Lennox ), ( Part Type: Pressure Switch ), ( Manufacturer Part Number: 11U72 )

Review LENNOX Pressure Switch

The Lennox 11U72 Pressure Switch is a crucial component in ensuring the efficient and safe operation of your heating system. This pressure switch, specifically model number 0.90WC and part number 104371-09, is designed to monitor the pressure levels within your system and automatically initiate necessary safety functions when required.

The 11U72 Pressure Switch is a diaphragm-style switch, which means it utilizes a flexible diaphragm to sense pressure changes. It is designed for use with low-pressure systems, making it an ideal choice for many residential heating applications. The switch has a rated operating pressure range of 0.90 inches of water column (wc), which allows it to effectively monitor the pressure levels in your system.

The 11U72 Pressure Switch is a reliable and durable component, constructed from high-quality materials to ensure long-lasting performance. It features a corrosion-resistant stainless steel housing, which protects the internal components from the effects of moisture and other corrosive substances. The switch also includes a sealed contact system, which helps to prevent the intrusion of dust and other contaminants that could potentially cause issues with switch operation.

This pressure switch is designed to be easy to install, with clear markings and a simple wiring diagram printed directly on the housing to guide you through the installation process. It is also compatible with a wide range of Lennox heating systems, making it a versatile and convenient choice for many homeowners.

In the event of a pressure issue, the 11U72 Pressure Switch is designed to automatically initiate the necessary safety functions to protect your heating system from damage. This includes activating the system's high-limit safety switch, which can help prevent costly repairs or even system failure. With its robust design, reliable performance, and easy installation, the Lennox 11U72 Pressure Switch is an essential component for maintaining the safe and efficient operation of your heating system.

Lennox 11U72 Pressure Switch (0.90WC 104371-09): A Comprehensive Analysis

The Lennox 11U72 Pressure Switch (0.90WC 104371-09) is a crucial component in maintaining the proper functioning of Lennox heating and cooling systems. This analysis will discuss the potential advantages and disadvantages of purchasing this pressure switch to help you make an informed decision.

1. OEM Compatibility: This pressure switch is an original equipment manufacturer (OEM) part, ensuring a perfect fit and seamless integration with your Lennox system.

2. Enhanced System Performance: Properly functioning pressure switches are essential for optimal system performance. By replacing a faulty switch with a new one, you can improve the overall efficiency and reliability of your heating and cooling system.

3. Durable Construction: Lennox is known for producing high-quality components, and this pressure switch is no exception. It features a rugged design that can withstand the rigors of continuous operation.

4. Easy Installation: The Lennox 11U72 Pressure Switch is designed for easy installation, making it a convenient choice for DIYers or HVAC professionals.

5. Long Lasting: With a robust construction and reliable design, this pressure switch is expected to last for an extended period, providing long-term value for your investment.

1. Cost: The Lennox 11U72 Pressure Switch may be more expensive than aftermarket alternatives. However, the OEM quality and reliability often justify the higher price.

2. Limited Availability: Depending on your location and availability, it may take some time to obtain this pressure switch from a distributor or supplier.

3. No Advanced Features: This pressure switch is designed to perform its basic function, and it does not come with any advanced features or capabilities.

The Lennox 11U72 Pressure Switch (0.90WC 104371-09) is a high-quality, reliable component designed to maintain the proper functioning of Lennox heating and cooling systems. While it may be more expensive than aftermarket alternatives, its OEM compatibility, enhanced system performance, durable construction, easy installation, and long-lasting design make it a worthwhile investment for those seeking optimal performance and reliability from their HVAC equipment.

If you own a Lennox heating or cooling system and need to replace a faulty pressure switch, the Lennox 11U72 Pressure Switch (0.90WC 104371-09) is an excellent choice. Its compatibility, performance, durability, ease of installation, and long-term value make it a wise investment for both DIYers and HVAC professionals.

Details:

Lennox 11U72 Pressure Switch 0.90WC 104371-09.

part #: 11u72 prices

• $27.00-$64.93

specifications aerationaura:

• brand: Lennox
• part type: Pressure Switch
• manufacturer part number: 11U72

payments aerationaura:

• other
• credit card: Visa
• wallet: Paypal

seller aerationaura:

• # reviews: 170
• city: Sweet Grass, Montana
• rating: 96.4%

general aerationaura:

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

returns aerationaura:

• policy: No Returns

offer aerationaura:

• options: Ship-to-home
• sold: 0
• started: February 3, 2026
• quantity: 4
• availability: In Stock

shipping aerationaura:

• class: Standard
• service: USPS Ground Advantage
• cost: $0.00
• carrier: USPS
• transit: 4-11 Days
• type: Fixed

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