
14A45-14A4501 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.00 | Condition is New, LENNOX/DUCANE/ARMSTRONG AIR PRESSURE SWITCH (2STG) .90/-.50 14A45 (104549-03), shipping cost = $12.00 | 99.4% |
![]() | $70.95 | Condition is New, OEM Lennox Armstrong Ducane Furnace Air Pressure Switch .5 .9 Fits 14A45 14A4501, FREE SHIPPING | ![]() |
![]() | $74.95 | Condition is New, 14A45 Lennox Pressure Switch OEM 14A45, shipping cost = $9.96 | 99.6% |
![]() | $83.36 | Condition is New, Lennox 14A45 PRESSURE SWITCH, FREE SHIPPING | 99.7% |
![]() | $84.17 | Top Pick! Condition is New, Lennox 14A45 Dual Pressure Switch 0.50/0.90WC Replacement 14A45, FREE SHIPPING | ![]() |
![]() | $88.84 | Condition is New, Lennox 14A45 PRESSURE SWITCH PRESSURE SWITCH, FREE SHIPPING | 98.5% |
![]() | $124.91 | Top Pick! Condition is New, LENNOX 14A45 Appliance Pressure Switch, FREE SHIPPING | ![]() |
![]() | $116.25 | Condition is New, Lennox Furnace Pressure Switch combination 14A45 2 stage .90/.50 P104549-03, shipping cost = $38.46 | 100.0% |
![]() | $275.02 | Condition is New, Fits Lennox 14A 45-30 24123-1-AW1 BEIZE-5 Thermal Expansion Valve/TXV, R410A, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $80.00 | Top Pick! Condition is Open box, Lennox 14A45 Pressure Switch OEM P104549-03, shipping cost = $10.00 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.95 | Condition is Used, OEM Lennox 14A45 P104549-03 2-Stage Pressure Switch USED, shipping cost = $5.89 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $80.89 | Condition is Unspecified, Lennox 14A45 PRESSURE SWITCH PRESSURE SWITCH, FREE SHIPPING | 97.8% |

The Lennox Armstrong Air Conditioning and Heating System's 14A45 14A4501 furnace pressure switch is an essential component of your HVAC system designed to ensure safe and efficient operation. This switch, manufactured by Lennox, a renowned name in the HVAC industry, is specifically engineered for use with the Lennox Armstrong 14A45 series of furnaces.
This pressure switch is responsible for monitoring the furnace's combustion process and detecting any potential issues related to the pressure within the furnace. It is designed to automatically shut off the furnace in case of high or low gas pressure, ensuring the safety of your home and family. This switch is a critical safety feature, as it helps prevent the risks associated with gas leaks, carbon monoxide poisoning, and other potential hazards.
The Lennovent 14A45 14A4501 pressure switch features a durable design, with a solid state construction that ensures reliable and consistent performance over time. It is designed to be easy to install, with clear and concise instructions provided in the user manual. The switch is also designed for ease of maintenance, with easily accessible terminals and a straightforward replacement process.
The 14A45 14A4501 pressure switch is compatible with natural gas and propane fuels, making it a versatile option for a wide range of heating systems. It is also UL listed, ensuring that it meets the highest standards of safety and quality. The switch is designed to operate in a wide temperature range, ensuring that it can function effectively in even the most extreme climate conditions.
In summary, the Lennox Armstrong Air Conditioning and Heating System's 14A45 14A4501 furnace pressure switch is a critical safety component that helps ensure the safe and efficient operation of your HVAC system. Its durable design, ease of installation, and versatility make it a reliable and effective solution for maintaining the safety and comfort of your home.
Lennox Armstrong Air Pressure Switch (14A45, 14A4501): A Comprehensive Analysis
The Lennox Armstrong Air Pressure Switch (models 14A45 and 14A4501) is a crucial component of your HVAC system that ensures proper furnace operation by maintaining the correct pressure level. In this analysis, we will discuss the advantages and disadvantages of purchasing this particular pressure switch.
Advantages:1. Reliability: Lennox is a well-known brand in the HVAC industry, and their components, including the Armstrong air pressure switch, are designed to last long.
2. Easy Installation: These pressure switches come with clear installation instructions and are relatively easy to install for DIYers or professionals.
3. Safety: Proper air pressure is essential for the safe operation of your furnace. The Lennox Armstrong pressure switch ensures that your system maintains the correct pressure level, preventing potential safety hazards.
4. Energy Efficiency: By maintaining the correct pressure level, the Lennox Armstrong pressure switch helps improve the overall efficiency of your HVAC system, reducing energy consumption and saving you money on utility bills.
Disadvantages:1. Cost: Compared to some other pressure switches in the market, the Lennox Armstrong 14A45 and 14A4501 models may be priced higher.
2. Limited Compatibility: These switches are specifically designed for Lennox furnaces, making them less versatile for those with different HVAC brands.
3. Potential False Alarms: In some cases, the Lennox Armstrong pressure switch may trigger false alarms, leading to unnecessary service calls or repairs.
Conclusion:The Lennox Armstrong Air Pressure Switch (models 14A45 and 14A4501) is a reliable and essential component of a Lennox furnace system. Its advantages, such as reliability, easy installation, safety, and energy efficiency, outweigh the disadvantages, which include higher cost, limited compatibility, and potential false alarms.
Recommendation:If you own a Lennox furnace and are in need of a new air pressure switch, the Lennox Armstrong 14A45 and 14A4501 models are solid choices. However, if you are looking for a more budget-friendly option or your furnace is not a Lennox model, you may want to explore other brands and models. Always consult with a professional HVAC technician for advice on the best solution for your specific situation.
Details:
Repair difficulty level: partial list of units that use this item. Replaces old part #s: 14A45 14A4501. 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.
specifications centrafurn:
- brand: Fits Lennox Armstrong Ducane
- mpn: 14a45
- model: Fits 14a45 14a4501
- type: Furnace Air Pressure Switch .5 .9
shipping centrafurn:
- carrier: usps, fedex, ups
- transit: 2-7 days
- service: usps ground advantage, usps priority mail, fedex 2day, ups next day air saver
- type: calculated
- class: standard, expedited, one-day
offer centrafurn:
- options: ship-to-home
- availability: in stock
- started: february 13, 2025
- prices: $49.95–$275.02
- item condition:
- New
- Open box
- Used
- Unspecified
- in stock #: 5
- sold #: 27
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
seller centrafurn:
- rating: 98.5%
- # reviews: 150575
- city: louisville, kentucky
returns centrafurn:
- method: money back
- paid by: seller
- policy: returns accepted
- time: 30 days
payments centrafurn:
- wallet: google-pay
- other
- credit card: visa
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