50A65-121 | Lennox Furnace Control Circuit Board 24V
50A65-121 | Lennox Furnace Control Circuit Board 24V
50A65-121 | Lennox Furnace Control Circuit Board 24V
    50A65-121 | Lennox Furnace Control Circuit Board 24V
50A65-121 | Lennox Furnace Control Circuit Board 24V

50A65-121 | Lennox Furnace Control Circuit Board 24V

Part #: 50A65-121 Manufactured by: Lennox
Regular price
$219.00
Sale price
$219.00
Regular price
2 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The 50A65-121 is a Lennox furnace control board built with Sure Light and Silicon Nitride ignition for dependable heating ...  Read more
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: 50A65-121
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Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 50A65-121

Description / Specifications

Description 

The Lennox 50A65-121 is a furnace control circuit board with integrated Silicon Nitride ignition and Sure Light technology for dependable furnace operation. Operating at 24 V with a 50 A rating, it serves as an OEM upgraded White-Rodgers replacement kit for Lennox heating systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Lennox
Category Control Boards
Part Number 50A65-121
Subcategory Furnace Control Boards
Function Furnace control and ignition management
Voltage 24 V
Amperage 50 A
Ignition Type Silicon Nitride, Integrated Ignition
Technology Sure Light, OEM Upgraded White-Rodgers Replacement Kit
Heating System Furnace
Application Residential HVAC heating systems
Power Phase Single-phase
Mounting Panel mounted
Weight 1 lb

 


Information About 50A65-121

The 50A65-121 is part of Lennox’s Sure Light series of furnace control boards, designed to improve ignition reliability and furnace safety. It features integrated Silicon Nitride ignition technology, providing efficient burner startup and consistent heating performance. As an OEM upgraded White-Rodgers replacement kit, the board is directly compatible with Lennox systems, simplifying installation and ensuring dependable operation. Compact and lightweight, the 50A65-121 offers stable system control while supporting critical furnace functions such as ignition sequencing, fan regulation, and safety monitoring.

Key Features:

  • Integrated Ignition Technology: Uses Silicon Nitride ignition for reliable, efficient burner lighting.

  • Sure Light Performance: Incorporates Lennox’s Sure Light system for consistent ignition and reduced misfire risks.

  • OEM Replacement Compatibility: Serves as a White-Rodgers upgraded kit designed specifically for Lennox furnaces.

  • Electrical Capability: Operates at 24 V single-phase with a 50 A rating, ensuring stable performance under load.

  • Multi-Function Control: Coordinates ignition sequence, blower operation, and safety shutdowns within the furnace.

  • Compact and Lightweight Build: Weighs only 1 lb, making it easy to handle and install during replacements.

  • System Reliability: Enhances long-term furnace efficiency by providing consistent and accurate control.

The 50A65-121 delivers the reliability and precision required for safe ignition management and system control in Lennox furnace systems.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Lennox 50A65-121 is a furnace control circuit board with integrated Silicon Nitride ignition and Sure Light technology for dependable furnace operation. Operating at 24 V with a 50 A rating, it serves as an OEM upgraded White-Rodgers replacement kit for Lennox heating systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Lennox
Category Control Boards
Part Number 50A65-121
Subcategory Furnace Control Boards
Function Furnace control and ignition management
Voltage 24 V
Amperage 50 A
Ignition Type Silicon Nitride, Integrated Ignition
Technology Sure Light, OEM Upgraded White-Rodgers Replacement Kit
Heating System Furnace
Application Residential HVAC heating systems
Power Phase Single-phase
Mounting Panel mounted
Weight 1 lb

 


Information About 50A65-121

The 50A65-121 is part of Lennox’s Sure Light series of furnace control boards, designed to improve ignition reliability and furnace safety. It features integrated Silicon Nitride ignition technology, providing efficient burner startup and consistent heating performance. As an OEM upgraded White-Rodgers replacement kit, the board is directly compatible with Lennox systems, simplifying installation and ensuring dependable operation. Compact and lightweight, the 50A65-121 offers stable system control while supporting critical furnace functions such as ignition sequencing, fan regulation, and safety monitoring.

Key Features:

  • Integrated Ignition Technology: Uses Silicon Nitride ignition for reliable, efficient burner lighting.

  • Sure Light Performance: Incorporates Lennox’s Sure Light system for consistent ignition and reduced misfire risks.

  • OEM Replacement Compatibility: Serves as a White-Rodgers upgraded kit designed specifically for Lennox furnaces.

  • Electrical Capability: Operates at 24 V single-phase with a 50 A rating, ensuring stable performance under load.

  • Multi-Function Control: Coordinates ignition sequence, blower operation, and safety shutdowns within the furnace.

  • Compact and Lightweight Build: Weighs only 1 lb, making it easy to handle and install during replacements.

  • System Reliability: Enhances long-term furnace efficiency by providing consistent and accurate control.

The 50A65-121 delivers the reliability and precision required for safe ignition management and system control in Lennox furnace systems.

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