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WHITE-RODGERS Furnace Control Board: OEM, Integrated, Compatible Brand Lennox/White-Rodgers - OEM Replacement Integrated Furnace Controls
WHITE-RODGERSOEM Replacement Integrated Furnace Controls

WHITE-RODGERS Furnace Control Board: OEM, Integrated, Compatible Brand Lennox/White-Rodgers

The WHITE-RODGERS Furnace Control Board (SKU 3G-OTH-70185) is an OEM replacement integrated furnace control designed for Lennox systems. It controls humidifiers and operates on 25V AC and 120V power (MPN 50A66-743)…

SKU 3G-OTH-70185

Also listed as: 50A66743 · 50A66 743

Brand
WHITE-RODGERS
Item
Furnace Control Board: OEM, Integrated, Compatible Brand Lennox/White-Rodgers
Category
OEM Replacement Integrated Furnace Controls
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
50A66-743
Type
Integrated, Compatible Brand Lennox/White-Rodgers, 120V
AC
25V
Product Type
Furnace Control Board
Items Controlled
Humidifiers
Replacement for OEM Brands
Lennox

Technical Documents

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WHITE-RODGERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHITE-RODGERS Furnace Control Board (SKU 3G-OTH-70185) is an OEM replacement integrated furnace control designed for Lennox systems. It controls humidifiers and operates on 25V AC and 120V power (MPN 50A66-743). This board is a direct replacement for Lennox OEM brands.

Frequently Asked Questions

What is the WHITE-RODGERS 50A66-743 furnace control board used for?

The WHITE-RODGERS 50A66-743 is an OEM replacement integrated furnace control board designed for Lennox systems. It controls humidifiers and operates on 25V AC and 120V power. This board directly replaces the original Lennox control, restoring proper furnace and humidifier operation.

What are the specifications of the WHITE-RODGERS 50A66-743 furnace control board?

The WHITE-RODGERS 50A66-743 is a furnace control board that operates on 25V AC and 120V power. It is an OEM replacement integrated control for Lennox systems and controls humidifiers. The manufacturer part number is 50A66-743, and it replaces Lennox OEM brands.

Where to buy the WHITE-RODGERS 50A66-743 furnace control board worldwide?

3G Electric supplies the WHITE-RODGERS 50A66-743 furnace control board worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this OEM replacement board for Lennox systems.

How to install the WHITE-RODGERS 50A66-743 furnace control board?

To install the WHITE-RODGERS 50A66-743, first disconnect all power to the furnace. Remove the old Lennox control board, noting wire connections. Mount the new board, reconnect wires per the wiring diagram, and restore power. Always follow local electrical codes and the manufacturer's instructions.

Used in

Common applications for WHITE-RODGERS
Residential furnace replacement — White-Rodgers 767A-377 hot surface igniter for Trane gas furnaces
Commercial HVAC control retrofits — White-Rodgers 90-T60C3 Class 2 transformer for 24V control circuits
Hydronic zone heating systems — White-Rodgers 13 61 104S1 2-way zone valve for multi-zone temperature control
Plenum temperature regulation — White-Rodgers 05D51 035S1 fan and limit control for forced-air furnaces
OEM furnace control board replacement — White-Rodgers 50N02A-820 integrated ignition control for Trane systems
Fan relay and transformer integration — White-Rodgers 90 118ES1 for compact HVAC control panels

WHITE-RODGERS Products

3G Electric supplies WHITE-RODGERS oem replacement integrated furnace controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Furnace Control Board: OEM, Integrated, Compatible Brand Carrier/ICP/White-Rodgers, 25V AC, 25V (MPN 50M56U-751)
WHITE-RODGERS
Furnace Control Board: OEM, Integrated, Compatible Brand Carrier/ICP/White-Rodgers, 25V AC, 25V (MPN 50M56U-751)
Furnace Control Board: Universal, Integrated, 25V AC, 25 V, Blowers (MPN 50M56X-843)
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Furnace Control Board: Universal, Integrated, 25V AC, 25 V, Blowers (MPN 50M56X-843)
Integrated Furnace Control: OEM, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50A65 843S1)
WHITE-RODGERS
Integrated Furnace Control: OEM, 24V AC, 5 min Lock Out, 30 sec Pre-Purge, 1.5 A Main Valve Output (MPN 50A65 843S1)
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21M51U-843)
WHITE-RODGERS
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out, 15 sec Pre-Purge (MPN 21M51U-843)

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