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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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$120.60 - $120.60
$120.60
$120.60 - $120.60
$120.60

48X21-811, Air Handler Controls

White-Rodgers
Out of stock

Air handler control for ECMx blowers

$120.60 - $120.60
$120.60
$120.60 - $120.60
$120.60
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$242.00 - $242.00
$242.00
$242.00 - $242.00
$242.00

48C21-707, Air Handler Controls

White-Rodgers
Out of stock

Variable speed air handler

$242.00 - $242.00
$242.00
$242.00 - $242.00
$242.00
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$141.40 - $141.40
$141.40
$141.40 - $141.40
$141.40

48P21-811, Air Handler Controls

White-Rodgers
Out of stock

Air handler control for PSC blowers

$141.40 - $141.40
$141.40
$141.40 - $141.40
$141.40
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$229.00 - $229.00
$229.00
$229.00 - $229.00
$229.00

50A66-743 Integrated Furnace Controls Direct OEM Replacement

Emerson Electric Co. (White-Rodgers)
Out of stock

50A66-743, Integrated Furnace Controls Direct OEM Replacement

$229.00 - $229.00
$229.00
$229.00 - $229.00
$229.00
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$244.00 - $244.00
$244.00
$244.00 - $244.00
$244.00

50C51-707, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

50C51-707, Integrated Furnace Controls Direct OEM Replacement

$244.00 - $244.00
$244.00
$244.00 - $244.00
$244.00
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$175.00 - $175.00
$175.00
$175.00 - $175.00
$175.00

50T35-743, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

50T35-743, Integrated Furnace Controls Direct OEM Replacement

$175.00 - $175.00
$175.00
$175.00 - $175.00
$175.00
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$146.00 - $146.00
$146.00
$146.00 - $146.00
$146.00

50A56-956, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

50A56-956, Integrated Furnace Controls Direct OEM Replacement

$146.00 - $146.00
$146.00
$146.00 - $146.00
$146.00
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$246.00 - $246.00
$246.00
$246.00 - $246.00
$246.00

50M56U-751, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

50M56U-751, Integrated Furnace Controls Direct OEM Replacement

$246.00 - $246.00
$246.00
$246.00 - $246.00
$246.00
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$333.00 - $333.00
$333.00
$333.00 - $333.00
$333.00

21D83M-843, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

21D83M-843, Integrated Furnace Controls Direct OEM Replacement

$333.00 - $333.00
$333.00
$333.00 - $333.00
$333.00
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$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00

50A55-3797, Integrated Furnace Controls Direct OEM Replacement

White-Rodgers
Out of stock

50A55-3797, Integrated Furnace Controls Direct OEM Replacement

$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00
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$292.00 - $292.00
$292.00
$292.00 - $292.00
$292.00

50M56X-843, Integrated Furnace Controls Universal Replacement

White-Rodgers
Out of stock

50M56X-843, Integrated Furnace Controls Universal Replacement

$292.00 - $292.00
$292.00
$292.00 - $292.00
$292.00
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$390.00 - $390.00
$390.00
$390.00 - $390.00
$390.00

21M51U-843, Integrated Furnace Controls Universal Replacement

White-Rodgers
Out of stock

21M51U-843, Integrated Furnace Controls Universal Replacement

$390.00 - $390.00
$390.00
$390.00 - $390.00
$390.00
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$391.00 - $391.00
$391.00
$391.00 - $391.00
$391.00

21V51U-843, Integrated Furnace Controls Universal Replacement

White-Rodgers
Out of stock

21V51U-843, Integrated Furnace Controls Universal Replacement

$391.00 - $391.00
$391.00
$391.00 - $391.00
$391.00
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$197.00 - $197.00
$197.00
$197.00 - $197.00
$197.00

50A55-843, Integrated Furnace Controls Universal Replacement

White-Rodgers
Out of stock

50A55-843, Integrated Furnace Controls Universal Replacement

$197.00 - $197.00
$197.00
$197.00 - $197.00
$197.00
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$173.00 - $173.00
$173.00
$173.00 - $173.00
$173.00

50F06-843, Universal Furnace Electronic Fan Timer

White-Rodgers
Out of stock

50F06-843, Universal Furnace Electronic Fan Timer

$173.00 - $173.00
$173.00
$173.00 - $173.00
$173.00
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$348.00 - $348.00
$348.00
$348.00 - $348.00
$348.00

Q7230A1005 Honeywell Interface Module

Honeywell International Inc
Out of stock

Honeywell Interface Module, Model: Q7230A, 24 VAC, 50/60 Hz, VA Rating: 2 VA, Terminal Board Electrical Connection, -40 to 150 deg F, Reversing Swi...

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$348.00 - $348.00
$348.00
$348.00 - $348.00
$348.00
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$227.00 - $227.00
$227.00
$227.00 - $227.00
$227.00

S9200U1000 Honeywell Hot Surface Ignition Control Board

Honeywell International Inc
Out of stock

Honeywell Hot Surface Ignition Control Board, 120 VAC, 5 A, 60 Hz, 30/60 s Heat-On, 60, 90, 120 or 180 s Heat-Off, 5 s Cool-On, 0 to 60 s Cool-Off ...

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$227.00 - $227.00
$227.00
$227.00 - $227.00
$227.00
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$55.05 - $55.05
$55.05
$55.05 - $55.05
$55.05

S8201-056 Bard Blower Control Board

Bard HVAC
Out of stock

Bard® Blower Control Board, 24 V, 6.9 A, For Use With: WA484-A05 Wall-Mounted Package Air Conditioner

$55.05 - $55.05
$55.05
$55.05 - $55.05
$55.05
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$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00

ICM2805A ICM Furnace Control Board

ICM Controls
Out of stock

ICM™ Furnace Control Board, 120 - 240 VAC, 60 Hz, 4-1/2 in L x 6 in W x 1-1/2 in H

$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00
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$282.00 - $282.00
$282.00
$282.00 - $282.00
$282.00

P79990 AAON Control Board

AAON
Out of stock

AAON® Control Board, 24 VAC, 250 mA, 60 Hz

$282.00 - $282.00
$282.00
$282.00 - $282.00
$282.00
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$331.00 - $331.00
$331.00
$331.00 - $331.00
$331.00

ICM282B ICM Furnace Control Board

ICM Controls
Out of stock

ICM™ Furnace Control Board, 98 - 132 VAC, 1 A, 2 hp, -40 to 149 deg F, For Use With: Model HK42FZ004 Gas Furnace

$331.00 - $331.00
$331.00
$331.00 - $331.00
$331.00
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$296.00 - $296.00
$296.00
$296.00 - $296.00
$296.00

HK50AA051 Carrier Terminal Control Board

Carrier
Out of stock

Carrier® Terminal Control Board, For Use With: 48HCDA04-5A Packaged Unit/RTU Model

$296.00 - $296.00
$296.00
$296.00 - $296.00
$296.00
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$131.00 - $131.00
$131.00
$131.00 - $131.00
$131.00

HK61EA006 Carrier Fan Control Board

Carrier
Out of stock

Carrier® Fan Control Board

$131.00 - $131.00
$131.00
$131.00 - $131.00
$131.00
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$190.00 - $190.00
$190.00
$190.00 - $190.00
$190.00

HH84AA020 Carrier Fan Blower Control Board

Carrier
Out of stock

Carrier® Fan Blower Control Board, 5-1/4 in L x 5 in W

$190.00 - $190.00
$190.00
$190.00 - $190.00
$190.00
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