LENNOX 107626-05 Control Board Ab 25A01100492 1444 A3
( Brand: Lennox ), ( Manufacturer Part Number: 107626-05 ), ( Model: 25A01100492 ), ( Part Type: Control Board )
Review LENNOX Control Board Ab A3
The **Lennox 107626-05 Control Board (Part Numbers: 25A01100492, AB1444, A3)** is a high-performance, digitally advanced control module engineered specifically for Lennox residential and light-commercial HVAC systems, designed to optimize efficiency, reliability, and user comfort. This sophisticated board serves as the central nervous system for modern Lennox furnaces, heat pumps, and hybrid systems, integrating seamlessly with smart thermostats, zoning controls, and advanced diagnostics to deliver precise climate management. Built with robust, high-grade components, the control board features a **25A01100492** firmware variant, which ensures compatibility with Lennox s latest communication protocols, including **AB1444** (a proprietary bus system) and **A3** (a specific model iteration), allowing for real-time monitoring of system performance, energy consumption, and fault detection. Its compact yet durable design incorporates a **microprocessor-based architecture**, enabling adaptive control algorithms that adjust heating and cooling cycles dynamically to maintain optimal indoor air quality, temperature consistency, and seasonal efficiency even in demanding environments. The board s **self-diagnostic capabilities** provide detailed error codes and troubleshooting guidance, reducing downtime and maintenance costs by alerting technicians to potential issues before they escalate. Whether integrated into a **Premium Air Series** furnace, a **Elite Series** heat pump, or a **Hybrid Heat** system, this control board enhances the system s responsiveness to user inputs while minimizing energy waste through intelligent staging of indoor units and outdoor compressors. Built to withstand the rigors of residential and light-commercial applications, it adheres to strict Lennox engineering standards, ensuring long-term reliability and compatibility with future firmware updates. For technicians and homeowners alike, the **107626-05** represents a cornerstone of modern HVAC innovation, blending cutting-edge technology with the practical performance needed to keep homes and small businesses comfortable year-round.
### **Pros and Cons of buying a Lennox 107626-05 Control Board (Part Number: 25A01100492 AB 1444 A3)**
#### **Pros:**1. **Compatibility** This control board is designed specifically for certain Lennox heating and cooling systems, ensuring proper functionality when installed in the correct unit. It is a direct replacement part, reducing the risk of compatibility issues with aftermarket alternatives.
2. **Reliability** Lennox is a well-established brand known for durable HVAC components. A genuine OEM (Original Equipment Manufacturer) part like this control board is built to meet Lennox s quality standards, which can improve system performance and longevity compared to generic or third-party replacements.
3. **Warranty Coverage** If purchased directly from Lennox or an authorized dealer, this part may still be eligible for warranty support, depending on the age of your system and the original warranty terms. This can provide peace of mind in case of early failure.
4. **Ease of Installation** Since it is an OEM part, it is designed to fit seamlessly into the existing system wiring and mounting points, reducing the likelihood of installation errors that could occur with non-matching parts.
5. **Performance Consistency** The control board regulates critical functions such as fan operation, thermostat communication, and safety controls. A high-quality part ensures consistent operation, preventing intermittent failures that could lead to costly repairs or comfort issues.
6. **Availability of Support** Lennox offers technical support and troubleshooting resources for their parts. If issues arise during installation or use, authorized technicians can more easily diagnose problems related to this specific part.
7. **Prevents System Downtime** If your system relies on this control board to function, replacing it promptly can restore heating or cooling capabilities quickly, avoiding extended periods without climate control.
---
#### **Cons:**1. **Cost** OEM parts like this control board are typically more expensive than generic or aftermarket alternatives. The price may range significantly higher, depending on whether you purchase it new or used, and from where (authorized dealer vs. third-party seller).
2. **Potential for Overkill** If your system s failure is due to a minor issue (e.g., a loose wire, a failing capacitor, or a thermostat problem), replacing the entire control board may be unnecessary. A technician should first diagnose the root cause to avoid unnecessary expenses.
3. **Limited Lifespan** Control boards, like all electronic components, eventually wear out. If your system is older, the board may fail again within a few years, especially if other system components are also degraded. This could lead to repeated replacement costs.
4. **Installation Complexity** While the part is designed for easy installation, replacing a control board may require electrical knowledge or experience. Improper handling of wiring or connections could damage the board or other system components, voiding warranties or causing further issues.
5. **Lead Time** Depending on availability, ordering this part from an authorized Lennox distributor or dealer may take time, especially if the part is backordered. This delay could be inconvenient if you need immediate system restoration.
6. **Risk of Counterfeit Parts** Purchasing from unauthorized sellers (e.g., eBay, Amazon, or uncertified online marketplaces) increases the risk of receiving a counterfeit or refurbished part that may not perform as expected. Always verify the seller s authenticity.
7. **Potential for Overdiagnosis** Some HVAC technicians may recommend replacing the control board as a default solution to avoid more complex repairs (e.g., compressor or blower motor issues). It s important to confirm that the board is indeed the source of the problem before proceeding.
---
### **Conclusion**
The Lennox 107626-05 control board is a high-quality, reliable replacement part for compatible Lennox systems. Its primary advantages lie in its compatibility, durability, and support from the manufacturer. However, the higher cost, potential for unnecessary replacement, and the risk of counterfeit parts are significant drawbacks. Whether this part is the right choice depends on your system s specific needs, budget, and the accuracy of the diagnosis.
If your system is experiencing issues and a technician has confirmed that the control board is faulty, purchasing this OEM part is a strong recommendation for long-term reliability. However, if the system is older or other components are failing, consider whether a full system upgrade or a more targeted repair might be more cost-effective in the long run.
### **Recommendation**
1. **Verify the Diagnosis** Before purchasing, ensure that the control board is indeed the cause of the problem. A professional HVAC technician should inspect the system to rule out other issues (e.g., wiring, thermostat, or other components).
2. **Purchase from an Authorized Source** Buy the part directly from Lennox, a certified dealer, or a reputable HVAC supply company to avoid counterfeit or refurbished parts. Check for authenticity and warranty coverage if available.
3. **Compare Costs** If budget is a concern, compare the price of this OEM part with high-quality aftermarket alternatives (e.g., from brands like Honeywell or Carrier). While aftermarket parts may not always match OEM reliability, some offer competitive performance at a lower cost.
4. **Consider Professional Installation** If you are not experienced with HVAC repairs, hire a licensed technician to install the control board. Proper installation ensures safety, warranty validity, and optimal performance.
5. **Evaluate System Health** If your system is frequently requiring control board replacements or other repairs, it may be more economical to invest in a newer, more efficient unit. Lennox offers energy-efficient models that could reduce long-term operating costs.
Ultimately, if the control board is confirmed as the issue and you prioritize reliability and longevity, the Lennox 107626-05 control board is a solid choice. However, weigh the cost against the potential benefits and consider whether a more comprehensive system assessment is warranted.
Details:
May 6 AM - 2:30 PM MDT Don't see the one you are looking for. 30 DAY WARRANTY. FREE Priority Shipping within the US.
part #: 10762605 prices
- $20.01-$75.00
specifications hvaapa:
- brand: Lennox
- mpn: 107626-05
- model: 25a01100492
- part type: Control Board
payments hvaapa:
- credit card: Diners-club
- other
- wallet: Apple-pay
seller hvaapa:
- rating: 100.0%
- # reviews: 72
- city: AZ
offer hvaapa:
- quantity: 1
- started: May 5, 2026
- availability: In Stock
- options: Ship-to-home
- best offers: True
- sold: 0
shipping hvaapa:
- transit: 3-9 Days
- class: Expedited
- service: USPS Priority Mail
- type: Fixed
- carrier: USPS
- cost: $0.00
general hvaapa:
- condition: Used
- HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
returns hvaapa:
- time: 30 Days
- policy: Returns Accepted
- method: Money back
- paid by: Buyer
Lennox 107626-05 Is Similar To:
- 103085-03 103085-02 Lennox Armstrong Ducane Oem Ignition Control Circuit Board (32.1% similar) Came out of a 2 ton Armstrong unit...(August 9th, 2018)
- 15m50 Lennox Nib Ignition Control (34.9% similar) Catalog NUMBER15M50 model part NUMBER607308-15 minimum order QUANTITY0. 5 lb length 11 in. Base unit of measure units gross WEIGHT1...(February 21st, 2018)
- 23l53 Lennox Ignition Board G0115057 (44.9% similar) Part: G0115057 prices...(January 22nd, 2018)
- 24l8501 24l85 Nos White Rodgers Circuit Board Lennox Armstrong Ducane (27.9% similar) Nos white Rodgers circuit board 50A62-121 e2 Lennox Armstrong Duane 24L8501 new old stock from an hvac repair company that went out of business. See photos for details...(July 29th, 2018)
- 30h67 Lb-50709bd Lennox Control Board Kit For Series Units (43.2% similar) See photos for details. Lennox 30H67 LB-50709BD control board kit for G20 series units new old stock from an hvac repair company that went out of business. Only comes with what you see in the photos...(July 29th, 2018)
- 44a97 Lennox Pressure Control Switch (36% similar) Lennox 44A97 switch...(November 25th, 2017)
- 46k69 Lennox Limit Control (38% similar) Up for sale is a new Lennox allied R40154B006 limit control R40154B008 comes as pictured with free shipping...(January 3rd, 2019)
- 46m67 Lennox Control Limit 3 (42% similar) ...(February 3rd, 2018)
- 49l88 Lennox New Surplus Limit Control Insert Degrees (34% similar) For sale is this new in package Lennox 3 insert limit control. Model 49L88 degrees...(May 20th, 2018)
- 50a66 Emerson White Rogers Lennox Circuit Board Hvac Parts Tools (32.5% similar) ...(March 22nd, 2018)
