
38M64-38M6401 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.49 | Condition is New, ClimaTek Air Pressure Switch 1.95" Fits Lennox Armstrong Ducane 38M64 38M6401, FREE SHIPPING | ![]() |
![]() | $42.95 | Condition is New, 38M64 Lennox 1.95"Wc Pressure Switch OEM 38M64, shipping cost = $8.95 | 99.6% |
![]() | $52.37 | Condition is New, Lennox 38M64 1.95"WC PRESSURE SWITCH, FREE SHIPPING | 99.4% |
![]() | $54.05 | Top Pick! Condition is New, Lennox 38M64 Pressure Switch 1.95 WC Replacement BNR RPL KT, FREE SHIPPING | ![]() |
![]() | $55.98 | Condition is New, Lennox 38M64 "1.95""WC PRESSURE SWITCH" "1.95""WC PRESSURE SWITCH", FREE SHIPPING | 98.6% |
![]() | $69.95 | Condition is New, OEM Lennox Armstrong Ducane Furnace Air Pressure Switch 1.95" Fits 38M64 38M6401, FREE SHIPPING | ![]() |
![]() | $100.31 | Condition is New, LENNOX 38M64 / 38M64 (BRAND NEW), shipping cost = $12.90 | 97.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $23.98 | Condition is Used, Lennox 38M6401 38M64 Pressure Switch 1.95 Honeywell IS20195 101L5104 Checked, FREE SHIPPING | 99.9% |

The Lennox Armstrong Oil Furnace Climatek Air Pressure Switch Model 38M64/38M6401 is a crucial component in ensuring optimal performance and efficiency of your Lennox Armstrong oil furnace. This switch is designed to monitor and maintain the correct air pressure within the furnace to ensure proper combustion and safe operation.
The 38M64/38M6401 Climatek Air Pressure Switch is a factory-installed accessory for select Lennox Armstrong oil furnaces. It is engineered with a diaphragm design, which allows it to sense changes in air pressure and respond accordingly. The switch features a durable, powder-coated steel housing that protects it from the harsh conditions within the furnace, while also providing a sleek and professional appearance.
The 38M64/38M6401 Climatek Air Pressure Switch is designed to work in conjunction with the furnace's control system to maintain the correct air pressure within the furnace. If the air pressure falls below the desired level, the switch will activate the furnace's blower motor to circulate air through the heat exchanger, increasing the pressure and allowing the furnace to continue operating safely and efficiently.
This switch is a critical component of your Lennox Armstrong oil furnace's safety system, and it is essential to maintain it in good working order. The switch is easy to install, and replacement is straightforward if needed. If you notice any issues with your furnace's performance, such as uneven heating or prolonged cycling, it may be an indication that the air pressure switch needs to be serviced or replaced.
The Lennox Armstrong Oil Furnace Climatek Air Pressure Switch Model 38M64/38M6401 is a reliable and essential accessory for your Lennox Armstrong oil furnace. Its durable design and easy installation make it a smart investment for homeowners looking to ensure the safe and efficient operation of their heating system. With regular maintenance and timely replacement when needed, this switch can help extend the life of your furnace and provide you with consistent, comfortable heating for years to come.
Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch: A Comprehensive Analysis
Introduction:The Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch is a crucial component in the heating and cooling system of Lennox furnaces. This switch regulates the pressure of the refrigerant in the system to ensure efficient and effective operation. In this analysis, we will discuss the pros and cons of buying this particular air pressure switch.
Pros:1. High-Quality Construction: The Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch is known for its robust and durable construction. It is designed to withstand the rigors of continuous use in heating and cooling systems.
2. Improved System Performance: A faulty air pressure switch can lead to poor system performance, such as inadequate heating or cooling. By replacing the old switch with a new one, you can improve the overall performance of your Lennox furnace.
3. Enhanced Energy Efficiency: A functional air pressure switch ensures that your system operates at optimal efficiency, reducing energy consumption and saving you money on utility bills.
4. Long-Lasting: Lennox is a reputable brand known for producing high-quality HVAC components, including air pressure switches. This switch is expected to last longer than some aftermarket alternatives.
Cons:1. Expensive: Compared to some aftermarket alternatives, the Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch can be quite expensive.
2. Limited Availability: This switch is only compatible with specific Lennox furnace models, limiting its availability to a specific customer base.
3. Complex Installation: Installing an air pressure switch can be a complex process, especially for those without prior experience. It may be necessary to hire a professional to ensure proper installation.
Conclusion:The Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch offers several advantages, including improved system performance, enhanced energy efficiency, and long-lasting construction. However, its high cost and limited availability may deter some potential buyers. Ultimately, the decision to purchase this switch depends on your specific heating and cooling needs, as well as your budget and availability of alternative options.
Recommendation:If you own a Lennox furnace and are experiencing issues with your air pressure switch, it may be worth investing in the Lennox Armstrong Ducane 38M64 38M6401 Climatek Air Pressure Switch for its superior quality and performance benefits. However, if you are looking for a more affordable alternative, consider researching aftermarket options that may be compatible with your furnace model. Always ensure that the replacement switch is of good quality and has positive customer reviews before making a purchase.
Details:
Replaces old part #s: 38M64 38M6401. Function: an air switch is safety designed to ensure that your inducer motor running at the proper rpm, and creating vacuum for furnace flue safely. Repair difficulty level: partial list of units that use this item.
specifications centrafurn:
- brand: Fits Lennox Armstrong Ducane
- mpn: 38m64
- model: Fits 38m64 38m6401
- type: Air Pressure Switch 1.95
returns centrafurn:
- policy: returns accepted
- method: money back
- time: 30 days
- paid by: seller
shipping centrafurn:
- transit: 4-9 days
- type: calculated
- service: usps ground advantage, usps priority mail, fedex 2day, ups next day air saver
- class: standard, expedited, one-day
- carrier: usps, fedex, ups
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
offer centrafurn:
- prices: $23.98–$100.31
- item condition:
- New
- Used
- availability: in stock
- started: february 18, 2025
- options: ship-to-home
- sold #: 27
payments centrafurn:
- credit card: discover
- wallet: paypal
- other
seller centrafurn:
- # reviews: 150628
- rating: 98.4%
- city: louisville, kentucky
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