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Control Boards

HVAC control boards manage system operation by coordinating ignition, blower operation, safety circuits, and fault monitoring in furnaces and air handlers. NWF Supply stocks a range of OEM and OEM replacement control boards compatible with major HVAC manufacturers including Nordyne, Lennox, Frigidaire, Carrier, and York.

These control boards are used in residential and light commercial furnaces and air handlers to regulate heating cycles, blower timing, limit switches, and diagnostic functions. All replacement boards are selected to meet original equipment specifications for voltage, ignition type, connector layout, and system compatibility, ensuring proper operation and reliable performance.

Our inventory includes direct-replacement HVAC control boards designed for accurate system control, straightforward installation, and long-term reliability in demanding HVAC environments.

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40403-003- Armstrong Lennox Blower Control Board
$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00

40403-003- Armstrong Lennox Blower Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

40403-003-  Armstrong Blower Control Board (New Part # R40403-003)

$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00
R20054502- Armstrong Lennox Blower Control Board
$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00

R20054502- Armstrong Lennox Blower Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

R20054502-  Armstrong Blower Control Board (New Part # R40403-003)

$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00
LB91097C- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

LB91097C- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

LB91097C- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
42451002- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

42451002- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

42451002- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
LB-91097C- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

LB-91097C- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

LB-91097C- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
34M63- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00

34M63 Lennox Armstrong OEM Heat Pump Replacement Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand-new OEM Lennox/Allied Air Heat Pump Defrost Control Board, Part # 16V38. This is the OEM replacement for obsolete Part# 34M63. This...

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$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00
Sold out
30W87- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00

30W87 Lennox Armstrong OEM Heat Pump Replacement Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand-new OEM Lennox/Allied Air Heat Pump Defrost Control Board, Part # 16V38. This is the OEM replacement for obsolete Part# 30W87. This...

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$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00
Sold out
LB-1011263A- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00

LB-1011263A Lennox Armstrong OEM Heat Pump Replacement Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand-new OEM Lennox/Allied Air Heat Pump Defrost Control Board, Part # 16V38. This is the OEM replacement for obsolete Part# LB-1011263A...

View full details
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00
Sold out
68J29- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00

68J29 Lennox Armstrong OEM Heat Pump Replacement Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand-new OEM Lennox/Allied Air Heat Pump Defrost Control Board, Part # 16V38. This is the OEM replacement for obsolete Part# 68J29. This...

View full details
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00
Sold out
R46614-002 - Lennox Defrost Control Board
$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00

R46614-002 - Lennox Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

R46614-002- Lennox Defrost Control Board New Part # (46K67)

$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00
R44614-001- Lennox Defrost Control Board
$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00

R44614-001- Lennox Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

R44614-001- Lennox Defrost Control Board New Part # (46K67)

$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00
84W8801 Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00

84W8801 Lennox Armstrong OEM Heat Pump Replacement Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Out of stock

This is a brand-new OEM Lennox/Allied Air Heat Pump Defrost Control Board, Part # 16V38. This is the OEM replacement for obsolete Part# 84W8801. Th...

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$0.00 - $0.00
$0.00
$78.00
$78.00 - $78.00
$78.00
Sold out
80M27 Lennox Furnace Control Board
Sold out
$221.00 - $221.00
$221.00
$221.00 - $221.00
$221.00

80M27 Lennox Armstrong Ducane Replacement Furnace Control Board

Lennox International, Inc.
Out of stock

This is a brand new Lennox control board part# 80M27.

$221.00 - $221.00
$221.00
$221.00 - $221.00
$221.00
Sold out
76700854 ADP Air Handler Control Board
Sold out
$0.00 - $0.00
$0.00
$84.00
$84.00 - $84.00
$84.00

76700854 ADP Air Handler Control Board

Lennox International, Inc.
Out of stock

This is a brand new OEM part# R76700854 Lennox Air Handler Control Board S Series that replaces old part# 76700854.

$0.00 - $0.00
$0.00
$84.00
$84.00 - $84.00
$84.00
Sold out
R76700854 Lennox Armstrong Ducane Air Handler Control Board
Sold out
$0.00 - $0.00
$0.00
$84.00
$84.00 - $84.00
$84.00

R76700854 Lennox Armstrong Ducane Air Handler Control Board

Lennox International, Inc.
Out of stock

This is a brand new OEM part# R76700854 Lennox Air Handler Control Board S Series.

$0.00 - $0.00
$0.00
$84.00
$84.00 - $84.00
$84.00
Sold out
$164.00 - $164.00
$164.00
$164.00 - $164.00
$164.00

R42582-001 42582-001 Lennox Armstrong Ducane Furnace Ignition Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

This is a brand new Lennox ignition control board part# 56W19.  This is the OEM replacement for part# R42582-001

$164.00 - $164.00
$164.00
$164.00 - $164.00
$164.00
$164.00 - $164.00
$164.00
$164.00 - $164.00
$164.00

56W19 Lennox Armstrong Ducane Furnace Ignition Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

This is a brand new Lennox ignition control board part# 56W19.

$164.00 - $164.00
$164.00
$164.00 - $164.00
$164.00
$178.00 - $178.00
$178.00
$178.00 - $178.00
$178.00

2517-907527J Lennox Armstrong Ducane OEM A2L Defrost Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 4 left!

This is a brand-new OEM Lennox/Allied Air A2L-rated defrost control board, part #27U80. This is also part# 107332-02 / 2517-907527J is used in seve...

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$178.00 - $178.00
$178.00
$178.00 - $178.00
$178.00
20549901- Honeywell, Ducane, Armstrong, Lennox Furnace Control Board
Sold out
$221.00 - $221.00
$221.00
$221.00 - $221.00
$221.00

20549901 Lennox Armstrong Ducane Replacement Furnace Control Board

Lennox International, Inc.
Out of stock

This is a brand new Lennox control board part# 80M27.  This is the OEM replacement for part# 20549901 

$221.00 - $221.00
$221.00
$221.00 - $221.00
$221.00
Sold out
R38493B1- Armstrong Lennox Blower Control Board
$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00

R38493B1- Armstrong Lennox Blower Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 1 left!

R38493B1-  Armstrong Blower Control Board (New Part # R40403-003)

$0.00 - $0.00
$0.00
$132.00
$132.00 - $132.00
$132.00
LB-91097A- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

LB-91097A- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

LB-91097A- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
42451-001- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

42451-001- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

42451-001- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
76K21- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

76K21- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

76K21- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
LB-91097B- Lennox OEM Furnace Control Board
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

LB-91097B- Lennox OEM Furnace Control Board

Lennox International, Inc.
Only 1 left!

LB-91097B- Lennox Furnace Control Board (New Part # 17W82)

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00