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CONTROL BOARD

Shop HVAC control boards at Open To Public HVAC Parts in Dallas. We carry furnace ignition control modules, air conditioner circuit boards, defrost control boards, and fan timer boards for all major brands including Goodman, Rheem, Carrier, Trane, and Lennox. Factory and aftermarket options in stock.

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Showing 1–48 of 67 results

  • Low Stock1016380R - CONTROL BOARD (NORDYNE)
    NORTEK

    1016380R – CONTROL BOARD (NORDYNE)

    SKU · 1016380R
    $158.00

    Nordyne 1016380R control board. OEM replacement for Nordyne, Miller, and Intertherm air handlers. Replaces 624735-B. Controls blower motor and system functions.

  • Low Stock103085-03 - CONTROL BOARD* (94W83)
    UNIVERSAL

    103085-03 – CONTROL BOARD (94W83)

    SKU · 94W83
    $241.14

    Lennox 94W83 (103085-03) ignition control board. OEM replacement for single-stage Lennox furnaces with PSC blower motors. Direct factory fit.

  • Low Stock16D74 - TIME DELAY RELAY (LENNOX)
    LENNOX

    16D74 – TIME DELAY RELAY (LENNOX)

    SKU · CT1S45
    $80.14

    Lennox 16D74 time delay relay. 24 VAC input, 1-second delay on make, 45-second delay on break. OEM part for Lennox air handlers. Also listed as CT1S45.

  • In Stock16V38 - DEFROST BOARD*
    UNIVERSAL

    16V38 – DEFROST BOARD*

    SKU · 84W88
    $149.98

    Lennox 16V38 defrost control board for heat pumps. Time/temperature defrost control with anti-short-cycle protection. OEM Lennox replacement.

  • Low Stock19W94 - CONTROL BOARD
    UNIVERSAL

    19W94 – CONTROL BOARD

    SKU · 19W94
    $647.19

    Lennox 19W94 control board kit. OEM replacement for specific Lennox furnace models. Manages ignition, blower control, and system safety functions.

  • Low Stock21M51U-843 - CONTROL BOARD (2-STAGE, PSC)
    UNIVERSAL

    21M51U-843 – CONTROL BOARD (2-STAGE, PSC)

    SKU · 21M51U-843
    $337.70

    White-Rodgers 21M51U-843 universal 2-stage furnace control board for PSC motors. Replaces hundreds of OEM boards. LED diagnostics built in.

  • Low Stock21V51U-843 - CONTROL BOARD (2-STAGE, ECM)
    UNIVERSAL

    21V51U-843 – CONTROL BOARD (2-STAGE, ECM)

    SKU · 21V51U-843
    $349.05

    White-Rodgers 21V51U-843 universal 2-stage furnace control board for ECM motors. Replaces 500+ OEM boards. Built-in diagnostics with LED error codes.

  • In Stock325878-751 - CONTROL BOARD (CARRIER, DIRECT, AFTERMARKET, 50M56U-751)
    UNIVERSAL

    325878-751 – CONTROL BOARD (CARRIER, DIRECT, AFTERMARKET, 50M56U-751)

    SKU · 325878-751
    $244.98

    Carrier 325878-751 control board (50M56U-751 aftermarket). Fits 58STA and 58ZAV series Carrier furnaces. Manages gas valve, ignition, and blower operations.

  • Low Stock47-100436-02 - CONTROL BOARD - X13 ECM (RHEEM, AIR HANDLER)
    RHEEM

    47-100436-02 – CONTROL BOARD – X13 ECM (RHEEM, AIR HANDLER)

    SKU · 47-102077-02
    $80.10

    Rheem 47-100436-02 control board for air handlers with X13 ECM motors. OEM replacement — also cross-references 47-102077-02, 47-102077-05, and 48X21-811.

  • Low Stock47-100436-05 - CONTROL BOARD - PSC MOTOR (RHEEM, AIR HANDLER)
    RHEEM

    47-100436-05 – CONTROL BOARD – PSC MOTOR (RHEEM, AIR HANDLER)

    SKU · 47-100436-05
    $76.92

    Rheem 47-100436-05 control board for air handlers with PSC motors. OEM replacement for Rheem and Ruud air handlers. Manages blower motor speed and timing.

  • Low Stock47-100436-08 - CONTROL BOARD (RHEEM)
    RHEEM

    47-100436-08 – CONTROL BOARD (RHEEM)

    SKU · 47-100436-08
    $55.28

    Rheem 47-100436-08 control board for Rheem and Ruud air handlers. OEM replacement with motor control and diagnostic capabilities.

  • Low Stock47-100436-84J - CONTROL BOARD (RHEEM)
    RHEEM

    47-100436-84J – CONTROL BOARD (RHEEM)

    SKU · 47-100436-04
    $85.80

    Rheem 47-100436-84J blower control board for Rheem and Ruud air handlers. OEM replacement — also listed as 47-100436-04. Controls blower motor speed and airflow.

  • Out of Stock47-102684-204 - DEFROST CONTROL BOARD
    UNIVERSAL

    47-102684-204 – DEFROST CONTROL BOARD

    SKU · 47-102684-204
    $107.95

    Rheem 47-102684-204 defrost control board for heat pumps. Manages defrost timing to prevent ice buildup on outdoor coil. OEM Rheem/Ruud replacement.

  • Low Stock47-102684-83 - DEFROST CONTROL BOARD WITH SENSORS (RHEEM)
    RHEEM

    47-102684-83 – DEFROST CONTROL BOARD WITH SENSORS (RHEEM)

    SKU · 47-102684-83
    $113.38

    Rheem 47-102684-83 defrost control board kit with sensors. Manages defrost timing on Rheem/Ruud heat pumps. Includes defrost sensors.

  • Low Stock50F06-843 - CONTROL BOARD (UNIVERSAL, ST9120)
    UNIVERSAL

    50F06-843 – CONTROL BOARD (UNIVERSAL, ST9120)

    SKU · ST9120U1011
    $191.17

    Universal fan timer control board, replaces over 150 OEM models including Honeywell ST9120 series. Works with single-stage gas furnaces. Drop-in replacement for most brands.

  • Low Stock50M56U-801 - CONTROL BOARD (LENNOX, AFTERMARKET)
    UNIVERSAL

    50M56U-801 – CONTROL BOARD (LENNOX, AFTERMARKET)

    SKU · 50M56U-801
    $200.41

    50M56U-801 aftermarket control board for Lennox single-stage furnaces. Replaces 103085 series, 100973 series, and many Lennox/Ducane/Armstrong boards.

  • Low Stock57T01-843 - FAN CONTROL BOARD (TIME DELAY RELAY, TRANE, RLY02807)
    TRANE

    57T01-843 – FAN CONTROL BOARD (TIME DELAY RELAY, TRANE, RLY02807)

    SKU · RLY02807
    $46.16

    Trane 57T01-843 time delay relay for air handlers. Keeps blower running 80 seconds after compressor shutdown. Replaces RLY02807, CNT05981. OEM Trane part.

  • Low Stock607436-05 - CONTROL BOARD (23C48)
    UNIVERSAL

    607436-05 – CONTROL BOARD (23C48)

    SKU · 23C48
    $328.79

    Lennox 23C48 (607436-05) ignition control board. OEM replacement for Lennox, Ducane, and Armstrong furnaces. Replaces earlier 607436-03 and 607436-06 revisions.

  • Low Stock619559-01 - DEFROST BOARD (LENNOX)
    LENNOX

    619559-01 – DEFROST BOARD (LENNOX, 16V37)

    SKU · 619559-01
    $146.63

    Lennox 619559-01 defrost control board kit (16V37) for heat pumps. Time/temperature defrost with anti-short-cycle protection. OEM Lennox.

  • Low Stock62-104058-02 - CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)
    RHEEM

    62-104058-02 – CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)

    SKU · 1194-200
    $189.93

    Rheem 62-104058-02 OEM control board for gas furnaces with spark ignition. Also listed as 1194-200. Manages ignition, flame sensing, and blower operations.

  • Low Stock62-105217-01 - CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)
    RHEEM

    62-105217-01 – CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)

    SKU · 62-105217-01
    $218.71

    Rheem 62-105217-01 OEM control board for gas furnaces with spark ignition. Manages ignition, flame sensing, and blower operations in Rheem/Ruud systems.

  • Low Stock62-24084-82 - CONTROL BOARD (RHEEM, AFTERMARKET, DIRECT REPLACEMENT, ICM288)
    UNIVERSAL

    62-24084-82 – CONTROL BOARD (RHEEM, AFTERMARKET, DIRECT REPLACEMENT, ICM288)

    SKU · 62-24084-82
    $261.91

    Rheem 62-24084-82 integrated furnace control board (ICM288 aftermarket). Direct replacement for Rheem gas furnaces. Manages ignition and blower operations.

  • Low Stock62-24140-04 - CONTROL BOARD (RHEEM, GAS, OEM)
    RHEEM

    62-24140-04 – CONTROL BOARD (RHEEM, GAS, OEM)

    SKU · 62-24140-04
    $217.69

    Rheem 62-24140-04 OEM control board for gas furnaces with direct spark ignition. Replaces 62-24140-02. ICM292 is the aftermarket equivalent. Fits RGPH/UGPH models.

  • Low Stock62-24268-03 - CONTROL BOARD (RHEEM, OEM, GAS, HSI)
    RHEEM

    62-24268-03 – CONTROL BOARD (RHEEM, OEM, GAS, HSI)

    SKU · 62-24268-03
    $213.30

    Rheem 62-24268-03 OEM control board for gas furnaces with hot surface ignition. Replaces 62-24268-01. Fits RGPJ series and similar Rheem/Ruud models.

  • Low Stock62-25338-01 - CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)
    RHEEM

    62-25338-01 – CONTROL BOARD (RHEEM, OEM, GAS, SPARK IGN)

    SKU · 62-25338-01
    $191.32

    Rheem 62-25338-01 OEM control board for gas furnaces with direct spark ignition. Manages ignition, flame sensing, and blower operations in Rheem/Ruud systems.

  • Low Stock81W03 - CONTROL BOARD*
    UNIVERSAL

    81W03 – CONTROL BOARD*

    SKU · 81W03
    $243.41

    Lennox 81W03 ignition control board. OEM replacement for Lennox furnaces. Manages ignition sequence and heating cycles. Replaces 75M17 and 78M47.

  • In Stock83M00 - CONTROL BOARD (LENNOX, GAS, AFTERMARKET, DIRECT, ICM2813)
    UNIVERSAL

    83M00 – CONTROL BOARD (LENNOX, GAS, AFTERMARKET, DIRECT, ICM2813)

    SKU · 83M00
    $230.16

    ICM2813 aftermarket control board for Lennox SureLight furnaces. Direct replacement for 83M00 and dozens of Lennox part numbers. Fits single and 2-stage models.

  • Low Stock903106 - CONTROL BOARD (NORTEK, GAS, AFTERMARKET, DIRECT, ICM2805A)
    UNIVERSAL

    903106 – CONTROL BOARD (NORTEK, GAS, AFTERMARKET, DIRECT, ICM2805A)

    SKU · 903106
    $142.63

    Nortek 903106 gas furnace control board (ICM2805A aftermarket). Direct replacement for Nortek/Frigidaire furnaces. Manages ignition and blower operations.

  • Low Stock903915A - CONTROL BOARD (NORDYNE)
    NORTEK

    903915A – CONTROL BOARD (NORDYNE)

    SKU · 624643
    $139.92

    Nordyne 903915A control board. OEM replacement for Nordyne gas furnaces. Also sold under part number 624643. Manages ignition, blower, and safety functions.

  • Low Stock920915 - CONTROL BOARD (G7/M7)
    UNIVERSAL

    920915 – CONTROL BOARD (G7/M7)

    SKU · 624742, 624844
    $159.99

    Nortek 920915 control board for G7 and M7 series furnaces. OEM replacement. Also sold as 624742, 624844, and 904840. Manages ignition and blower control.

  • In StockB1809913S - CONTROL BOARD (GOODMAN, AFTERMARKET, DIRECT, 50T35-743)
    UNIVERSAL

    B1809913S – CONTROL BOARD (GOODMAN, AFTERMARKET, DIRECT, 50T35-743)

    SKU · 50T35-743
    $180.50

    Goodman B1809913S control board (50T35-743 / ICM280 aftermarket). Fits GMP and GMT series Goodman furnaces. Direct OEM replacement for older B18099 revisions.

  • Low StockBRD05765 - CONTROL BOARD (AMERISTAR)
    AMERICAN STANDARD

    BRD05765 – CONTROL BOARD (AMERISTAR)

    SKU · BRD5765
    $197.59

    Ameristar BRD05765 control board. OEM replacement for Ameristar air handlers. Replaces BRD04300, BRD4300, and BRD5765. Controls blower and system functions.

  • Low StockCESO110057-02 - CONTROL BOARD (CARRIER, AFTERMARKET, DIRECT, ICM281)
    UNIVERSAL

    CESO110057-02 – CONTROL BOARD (CARRIER, AFTERMARKET, DIRECT, 50M56D-751)

    SKU · CESO110057-00, CESO110057-01, CESO110057-02
    $199.92

    Carrier CESO110057-02 control board (ICM281C / 50M56D-751 aftermarket). Fits Carrier single-stage furnaces. Replaces all CESO110057 revisions.

  • In StockCNT03797 - CONTROL BOARD (TRANE, 120V, AFTERMARKET, DIRECT, 50A55-3797)
    UNIVERSAL

    CNT03797 – CONTROL BOARD (TRANE, 120V, AFTERMARKET, DIRECT, 50A55-3797)

    SKU · CNT03797
    $195.26

    Trane CNT03797 control board (50A55-3797 aftermarket). 120V integrated furnace control for Trane and American Standard systems. Replaces dozens of CNT numbers.

  • Low StockCNT05001 - DEFROST CONTROL BOARD (OEM, TRANE)
    TRANE

    CNT05001 – DEFROST CONTROL BOARD (OEM, TRANE)

    SKU · CNT05001
    $150.77

    Trane CNT05001 defrost control board for heat pumps. Controls defrost cycle timing to prevent frost buildup on outdoor coil. OEM Trane part.

  • In StockCNT05165 - CONTROL BOARD (TRANE, 80V HSI, AFTERMARKET, DIRECT, 50A65-5165)
    UNIVERSAL

    CNT05165 – CONTROL BOARD (TRANE, 80V HSI, AFTERMARKET, DIRECT, 50A65-5165)

    SKU · CNT05165
    $195.70

    Trane CNT05165 control board (50A65-5165 aftermarket). 80V HSI integrated furnace control for Trane and American Standard systems. Replaces CNT03076 and more.

  • Low StockCNT05482 - DEFROST CONTROL BOARD (OEM, TRANE)
    TRANE

    CNT05482 – DEFROST CONTROL BOARD (OEM, TRANE)

    SKU · CNT5482
    $102.53

    Trane CNT05482 defrost control board for heat pumps. Controls defrost cycle timing to prevent frost buildup on outdoor coil. OEM Trane part.

  • Low StockCNT07737 - CONTROL BOARD (OEM, TRANE, CONSTANT TORQUE)
    TRANE

    CNT07737 – CONTROL BOARD (OEM, TRANE, CONSTANT TORQUE)

    SKU · CNT7737
    $220.14

    Trane CNT07737 OEM control board for furnaces with constant torque motors. Replaces CNT04711. Fits TUD1C series and similar Trane/American Standard models.

  • Out of StockCNT07639 - CONTROL BOARD (OEM, TRANE, S8X1 SERIES)
    TRANE

    CNT09646 – CONTROL BOARD (OEM, TRANE, S8X1 SERIES)

    SKU · CNT07639
    $207.23

    Trane CNT09646 (replaces CNT07639, CNT07872) OEM control board for S8X1 series furnaces. Manages ignition, blower, and system safety for Trane furnaces.

  • Low StockCNT07940 - CONTROL BOARD (OEM, TRANE, A801X)
    TRANE

    CNT09648 – CONTROL BOARD (OEM, TRANE, A801X)

    SKU · CNT09648
    $179.88

    Trane CNT09648 OEM control board for A801X series furnaces. Replaces earlier CNT07940 revision. Full system management with LED diagnostic codes.

  • In StockHK32EA007 - DEFROST CONTROL BOARD
    UNIVERSAL

    HK32EA007 – DEFROST CONTROL BOARD

    SKU · HK32EA007
    $97.06

    Carrier HK32EA007 defrost control board for heat pumps. Manages defrost cycles to prevent coil freezing. Replaces HK32EA001. OEM Carrier/Bryant/Payne.

  • Low StockHK42FZ027 - CONTROL BOARD
    UNIVERSAL

    HK42FZ027 – CONTROL BOARD

    SKU · HK42FZ027
    $592.43

    Carrier HK42FZ027 control board. OEM microprocessor-based board for Carrier, Bryant, and Payne furnaces. Manages ignition, blower, and system diagnostics.

  • In StockHK42FZ086 - CONTROL BOARD (OEM, 1190595)
    UNIVERSAL

    HK42FZ086 – CONTROL BOARD (OEM, 1190595)

    SKU · 1190595
    $318.83

    Carrier HK42FZ086 control board (OEM part 1190595). Microprocessor-based for Carrier, Bryant, Payne furnaces. Fits PG80ESA and 58SC series models.

  • Low StockHK50AA051 - TERMINAL BOARD
    UNIVERSAL

    HK50AA051 – TERMINAL BOARD (1183618)

    SKU · HK50AA051
    $206.25

    Carrier HK50AA051 terminal board (also listed as 1183618). Provides terminal connections for wiring inside commercial and residential Carrier/Bryant/Payne equipment.

  • Low StockHK61EA002 - CONTROL BOARD (1171000)
    UNIVERSAL

    HK61EA002 – CONTROL BOARD (1171000)

    SKU · 1171000
    $87.53

    Carrier HK61EA002 fan control board with time delay relay. OEM replacement — cross-references 1171000. Fits Carrier, Bryant, and Payne air handlers.

  • In StockHK61EA006 - CONTROL BOARD (OEM, 1171734)
    UNIVERSAL

    HK61EA006 – CONTROL BOARD (OEM, 1171734)

    SKU · 1171734
    $118.03

    Carrier HK61EA006 fan control board with integrated time delay relay. OEM replacement — cross-references 1171734. Fits Carrier, Bryant, and Payne air handlers.

  • Low StockHK61EA010 - CIRCUIT BOARD (1172975)
    UNIVERSAL

    HK61EA010 – CIRCUIT BOARD (1172975)

    SKU · HK61EA010
    $124.39

    Carrier HK61EA010 fan control board. OEM replacement for Carrier, Bryant, and Payne air handlers. Replaces part numbers HK61EA002 and HK61EA006. Also cross-references 1172975.

  • Low StockHK61EA020 - DEFROST CONTROL BOARD
    UNIVERSAL

    HK61EA020 – DEFROST CONTROL BOARD

    SKU · HK61EA020
    $182.79

    Carrier HK61EA020 defrost control board for heat pumps. Manages defrost cycles to prevent ice buildup. OEM Carrier/Bryant/Payne replacement.

Showing 48 of 67 parts

Signs You May Need a New Control Board

The control board is the "brain" of your furnace or air handler. It manages the startup sequence, monitors safety switches, and controls blower speeds.

🔴Flashing Error Codes or No LED Activity
  • The diagnostic LED is blinking an unfamiliar pattern or not lighting at all.
  • Continuous rapid blinking or no blink indicates board failure.
  • Check the code chart on your furnace door panel to decode the pattern.
🔄System Behaves Erratically
  • The blower runs at the wrong speed or won't shut off.
  • Components turn on in the wrong sequence.
  • Random shutdowns or failure to complete the startup sequence.
🔥Visible Burn Marks or Damaged Components
  • Blackened areas, melted connectors, or charred components on the board.
  • Blown fuses on the board that keep failing after replacement.
  • A burnt smell coming from the furnace cabinet.

Power surges and lightning strikes are common causes of board failure in Dallas. A surge protector can prevent future damage.

Furnace or AC Doesn't Respond to Thermostat
  • The thermostat calls for heating or cooling but nothing happens.
  • The thermostat display is working but the system won't start.
  • After ruling out the thermostat itself, the control board is the next suspect.
Not sure which part you need? Bring your old part to our Dallas store — our team will test it for free and help you find the right replacement.
📞 (214) 340-9421Mon–Fri 10 am – 7 pm  |  Sat 10 am – 3 pm
Call (214) 340-9421