Skip to content

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.

Filters

$
$
CNT1848- OEM Trane Control Board Sold out
$0.00 - $0.00
$0.00
$160.00
$160.00 - $160.00
$160.00

CNT1848- OEM Trane Control Board

Ingersoll-Rand PLC (Trane)
Out of stock

CNT1848- OEM Trane Control Board (New Part # CNT7941)

$0.00 - $0.00
$0.00
$160.00
$160.00 - $160.00
$160.00
Sold out
CNT2181- OEM Trane Control Board Sold out
$0.00 - $0.00
$0.00
$160.00
$160.00 - $160.00
$160.00

CNT2181- OEM Trane Control Board

Ingersoll-Rand PLC (Trane)
Out of stock

CNT2181- OEM Trane Control Board (New Part # CNT7941)

$0.00 - $0.00
$0.00
$160.00
$160.00 - $160.00
$160.00
Sold out
CNT5875 Trane American Standard Defrost Control Board Sold out
$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00

CNT5875 Trane American Standard Defrost Control Board

Ingersoll-Rand PLC (Trane)
Out of stock

This is an OEM Trane part number CNT05875 Defrost Control Circuit Board

$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00
Sold out
20549901- Honeywell, Ducane, Armstrong, Lennox Furnace Control Board
20549901- Honeywell, Ducane, Armstrong, Lennox Furnace Control Board Sold out
$185.00 - $185.00
$185.00
$185.00 - $185.00
$185.00

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 

$185.00 - $185.00
$185.00
$185.00 - $185.00
$185.00
Sold out
R38493B1- Armstrong Lennox Blower Control Board
R38493B1- Armstrong Lennox Blower Control Board
$0.00 - $0.00
$0.00
$115.00
$115.00 - $115.00
$115.00

R38493B1- Armstrong Lennox Blower Control Board

Lennox International, Inc. / Allied Air Enterprises LLC
Only 2 left!

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

$0.00 - $0.00
$0.00
$115.00
$115.00 - $115.00
$115.00
LB-91097A- Lennox OEM Furnace Control Board
LB-91097A- Lennox OEM Furnace Control Board
Sold out
$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

LB-91097A- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

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

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Sold out
42451-001- Lennox OEM Furnace Control Board
42451-001- Lennox OEM Furnace Control Board
Sold out
$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

42451-001- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

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

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Sold out
76K21- Lennox OEM Furnace Control Board
76K21- Lennox OEM Furnace Control Board
Sold out
$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

76K21- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

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

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Sold out
LB-91097B- Lennox OEM Furnace Control Board
LB-91097B- Lennox OEM Furnace Control Board
Sold out
$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

LB-91097B- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

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

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Sold out
18K90- Lennox OEM Furnace Control Board
18K90- Lennox OEM Furnace Control Board
Sold out
$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

18K90- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

18K90- Lennox Furnace Control Board (New Part # 17W82)

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Sold out
17L96- Lennox OEM Furnace Control Board
17L96- Lennox OEM Furnace Control Board
Sold out
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

17L96- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

17L96- Lennox Furnace Control Board (New Part # 17W82)

$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
Sold out
R42451-001- Lennox OEM Furnace Control Board
R42451-001- Lennox OEM Furnace Control Board
Sold out
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

R42451-001- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

R42451-001- Lennox Furnace Control Board (New Part # 17W82)

$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
Sold out
R42451-002- Lennox OEM Furnace Control Board
R42451-002- Lennox OEM Furnace Control Board
Sold out
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

R42451-002- Lennox OEM Furnace Control Board

Lennox International, Inc.
Out of stock

R42451-002- Lennox Furnace Control Board (New Part # 17W82)

$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
Sold out
11K71- Lennox Armstrong Heat Pump Defrost Control Board
11K71- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

11K71- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

11K71- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
101269-01- Lennox Armstrong Heat Pump Defrost Control Board
101269-01- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

101269-01- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

101269-01- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
30W87- Lennox Armstrong Heat Pump Defrost Control Board
30W87- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

30W87- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

30W87- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
56M37- Lennox Armstrong Heat Pump Defrost Control Board
56M37- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

56M37- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

56M37- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
29M02- Lennox Armstrong Heat Pump Defrost Control Board
29M02- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

29M02- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

29M02- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
101269-02- Lennox Armstrong Heat Pump Defrost Control Board
101269-02- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

101269-02- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

101269-02- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
97M81- Lennox Armstrong Heat Pump Defrost Control Board
97M81- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

97M81- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

97M81- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
68J84- Lennox Armstrong Heat Pump Defrost Control Board
68J84- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

68J84- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

68J84- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
29M01- Lennox Armstrong Heat Pump Defrost Control Board
29M01- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

29M01- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

29M01- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
101269-03 Lennox Armstrong Heat Pump Defrost Control Board
101269-03 Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

101269-03 Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

101269-03 Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out
LB-101263A- Lennox Armstrong Heat Pump Defrost Control Board
LB-101263A- Lennox Armstrong Heat Pump Defrost Control Board
Sold out
$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00

LB-101263A- Lennox Armstrong Heat Pump Defrost Control Board

Lennox International Inc.
Out of stock

LB-101263A- Lennox Defrost Circuit Board Control for Heat Pump (New Part # 16V38)

$0.00 - $0.00
$0.00
$73.00
$73.00 - $73.00
$73.00
Sold out