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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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$128.92 - $128.92
$128.92
$128.92 - $128.92
$128.92

47D43-811, Rheem Direct Replacement Demand Defrost Control

White-Rodgers
Out of stock

Outdoor equipment electronic innovations include an OEM defrost control

$128.92 - $128.92
$128.92
$128.92 - $128.92
$128.92
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$321.00 - $321.00
$321.00
$321.00 - $321.00
$321.00

49S25-707, Goodman Direct Replacement AC or Heat Pump Control

White-Rodgers
Out of stock

Goodman direct replacement two-stage AC or heat pump unitary control for PCM or ECM outdoor fan motors, and single-phase compressors up to 5-tons. ...

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$321.00 - $321.00
$321.00
$321.00 - $321.00
$321.00
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$104.00 - $104.00
$104.00
$104.00 - $104.00
$104.00

48M55-751, Air Handler Controls

White-Rodgers
Out of stock

Direct replacement for Carrier single stage air handler with PSC Blowers or ECMx Constant Torque Blowers

$104.00 - $104.00
$104.00
$104.00 - $104.00
$104.00
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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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$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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