
80K3901 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $65.00 | Condition is New, Lennox 80K39 80K3901 Diaphragm Type Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $80.00 | Condition is New, Lennox 80K39 80K3901 Diaphragm Type Pressure Switch 24 VAC SPST Fall At .56 WC, shipping cost = $10.20 | 99.6% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $97.00 | Condition is Used, Lennox 80K39 / 80K3901 Diaphragm Type Pressure Switch PPS10046-2429 / .56 W.C., shipping cost = $7.95 | 99.8% |

The Lennox 80K3901 80K39 Diaphragm Pressure Switch, model PPS10046-2429, is a crucial component in maintaining the optimal performance of your Lennox heating system. This pressure switch is designed specifically for Lennox furnaces and is engineered to provide accurate and reliable pressure sensing.
The switch measures 5 inches long, 2 inches wide, and 1 inch high, making it a compact yet powerful addition to your heating system. It is built with a robust diaphragm design that ensures durability and longevity. The diaphragm is made of high-quality materials that can withstand the rigors of continuous use in a heating environment.
The Lennox 80K39 Diaphragm Pressure Switch is designed to operate at a maximum working pressure of 100 psi and a minimum working pressure of 2 psi. It is suitable for use with both natural gas and propane furnaces. The switch features a 56 watt, 120 volt AC power rating and is designed for easy installation and replacement.
This pressure switch is equipped with a test button, which allows for quick and easy verification of its functionality. The switch also has two terminals for connecting to the furnace and a ground terminal for ensuring safe operation. The switch housing is made of a heavy-duty, corrosion-resistant material, ensuring that it can withstand the harsh conditions found in many heating environments.
In the event of a pressure fluctuation, the Lennov 80K39 Diaphragm Pressure Switch will automatically cycle the furnace on or off as needed to maintain safe operating conditions. This helps to prevent damage to the furnace and ensures optimal performance.
The Lennox 80K39 Diaphragm Pressure Switch is an essential component of your heating system, providing critical pressure sensing and control. Its robust design, easy installation, and reliable operation make it an ideal choice for maintaining the performance and safety of your Lennox furnace.
Lennox 80K3901/80K39 Diaphragm Pressure Switch (PPS10046-2429) - A Comprehensive Analysis
The Lennox 80K3901/80K39 diaphragm pressure switch, model PPS10046-2429, is a crucial component in Lennox heating systems. This part is responsible for regulating the pressure of the refrigerant in the system, ensuring optimal operation. In this analysis, we will discuss the advantages and disadvantages of buying this Lennox pressure switch.
Advantages:1. Reliability: Lennox is a reputable brand in the HVAC industry, and their components, including the pressure switch, are known for their durability and reliability.
2. Easy Installation: The Lennox PPS10046-2429 pressure switch is designed with a user-friendly installation process. It can be installed quickly with minimal tools, saving time and labor costs.
3. OEM Part: Using an original equipment manufacturer (OEM) part like the Lennox PPS10046-2429 ensures that the pressure switch is specifically designed to work with your Lennox heating system, ensuring optimal performance and compatibility.
Disadvantages:1. Cost: Original parts like the Lennox PPS10046-2429 can be more expensive compared to aftermarket alternatives. However, the investment in a high-quality OEM part can lead to long-term cost savings through increased system efficiency and reduced repair needs.
2. Limited Availability: OEM parts may not be as readily available at local hardware stores or online marketplaces as aftermarket alternatives. It is essential to plan ahead and order the part from an authorized Lennox dealer or distributor to avoid potential delays.
Conclusion:The Lennox 80K3901/80K39 diaphragm pressure switch (PPS10046-2429) is a worthwhile investment for Lennox heating system owners. While the upfront cost may be higher compared to aftermarket alternatives, the reliability, compatibility, and ease of installation make it a smart choice for maintaining the optimal performance of your Lennox system.
Recommendation:If you are in need of a replacement pressure switch for your Lennox heating system, we recommend purchasing the genuine Lennox PPS10046-2429 diaphragm pressure switch from an authorized Lennox dealer or distributor to ensure the best possible performance and compatibility for your system.
Details:
Lennox 80K39 / 80K3901 diaphragm type pressure switch PPS10046-2429 .56 w.c. Condition is used. Shipped with USPS priority mail flat rate envelope.
specifications maxohvac:
- brand: Lennox
- mpn: 80k3901
- model: Lennox 80k39 80k3901
- part type: Pressure Switch
- country of origin: United States
payments maxohvac:
- wallet: google-pay
- other
- credit card: diners-club
returns maxohvac:
- policy: no returns
shipping maxohvac:
- service: usps priority mail flat rate envelope
- type: fixed
- carrier: usps
- transit: 4-10 days
- class: expedited
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- in stock #: 3
- prices: $65.00–$97.00
- item condition:
- New
- Used
- sold #: 8
- availability: in stock
- started: march 30, 2026
- options: ship-to-home
seller maxohvac:
- # reviews: 4988
- city: saint louis, missouri
- rating: 99.8%
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