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.
Showing 1–48 of 81 results
Nordyne / Intertherm / Miller OEM control board. Nordyne publishes no public specification sheet for this part number, so voltages, amperages and application data are not stated here – verify against the board silkscreen before installing.
Lennox direct spark ignition integrated control board, catalog number 21W14. The board manages the furnace ignition sequence and blower timing, driving the spark igniter and gas valve and monitoring flame.
Nordyne 1016380R control board. OEM replacement for Nordyne, Miller, and Intertherm air handlers. Replaces 624735-B. Controls blower motor and system functions.
Lennox 94W83 (103085-03) ignition control board. OEM replacement for single-stage Lennox furnaces with PSC blower motors. Direct factory fit.
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.
Lennox 16V38 defrost control board for heat pumps. Time/temperature defrost control with anti-short-cycle protection. OEM Lennox replacement.
Lennox 19W94 control board kit. OEM replacement for specific Lennox furnace models. Manages ignition, blower control, and system safety functions.
White-Rodgers 21M51U-843 universal 2-stage furnace control board for PSC motors. Replaces hundreds of OEM boards. LED diagnostics built in.
White-Rodgers 21V51U-843 universal 2-stage furnace control board for ECM motors. Replaces 500+ OEM boards. Built-in diagnostics with LED error codes.
Carrier 325878-751 control board (50M56U-751 aftermarket). Fits 58STA and 58ZAV series Carrier furnaces. Manages gas valve, ignition, and blower operations.
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.
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.
Rheem 47-100436-08 control board for Rheem and Ruud air handlers. OEM replacement with motor control and diagnostic capabilities.
Rheem/Ruud ProTech genuine OEM control board. Rheem lists it as a current, orderable OEM control board but publishes no electrical specification table for it, so voltages and amperages are not stated here; the published data is limited to identification, packaging and dimensions.
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.
Rheem 47-102684-204 defrost control board for heat pumps. Manages defrost timing to prevent ice buildup on outdoor coil. OEM Rheem/Ruud replacement.
Rheem 47-102684-83 defrost control board kit with sensors. Manages defrost timing on Rheem/Ruud heat pumps. Includes defrost sensors.
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.
50M56U-801 aftermarket control board for Lennox single-stage furnaces. Replaces 103085 series, 100973 series, and many Lennox/Ducane/Armstrong boards.
Trane 57T01-843 time delay relay for air handlers. Keeps blower running 80 seconds after compressor shutdown. Replaces RLY02807, CNT05981. OEM Trane part.
Lennox 23C48 (607436-05) ignition control board. OEM replacement for Lennox, Ducane, and Armstrong furnaces. Replaces earlier 607436-03 and 607436-06 revisions.
Lennox 619559-01 defrost control board kit (16V37) for heat pumps. Time/temperature defrost with anti-short-cycle protection. OEM Lennox.
Rheem/Ruud ProTech genuine OEM integrated furnace control (IFC) board kit. The IFC sequences the inducer, pressure switch, ignition, gas valve, flame sense and circulating blower while monitoring the limit and rollout safety circuits.
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.
Rheem 62-105217-01 OEM control board for gas furnaces with spark ignition. Manages ignition, flame sensing, and blower operations in Rheem/Ruud systems.
Rheem/Ruud ProTech genuine OEM integrated furnace control (IFC) board. It manages the heating sequence from gas ignition through blower off-delay and reports faults through an onboard LED.
Rheem 62-24084-82 integrated furnace control board (ICM288 aftermarket). Direct replacement for Rheem gas furnaces. Manages ignition and blower operations.
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.
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.
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.
Lennox 81W03 ignition control board. OEM replacement for Lennox furnaces. Manages ignition sequence and heating cycles. Replaces 75M17 and 78M47.
ICM2813 aftermarket control board for Lennox SureLight furnaces. Direct replacement for 83M00 and dozens of Lennox part numbers. Fits single and 2-stage models.
Nortek 903106 gas furnace control board (ICM2805A aftermarket). Direct replacement for Nortek/Frigidaire furnaces. Manages ignition and blower operations.
Nordyne 903915A control board. OEM replacement for Nordyne gas furnaces. Also sold under part number 624643. Manages ignition, blower, and safety functions.
Nortek 920915 control board for G7 and M7 series furnaces. OEM replacement. Also sold as 624742, 624844, and 904840. Manages ignition and blower control.
Goodman B1809913S control board (50T35-743 / ICM280 aftermarket). Fits GMP and GMT series Goodman furnaces. Direct OEM replacement for older B18099 revisions.
Ameristar BRD05765 control board. OEM replacement for Ameristar air handlers. Replaces BRD04300, BRD4300, and BRD5765. Controls blower and system functions.
Carrier CESO110057-02 control board (ICM281C / 50M56D-751 aftermarket). Fits Carrier single-stage furnaces. Replaces all CESO110057 revisions.
Trane/American Standard OEM printed wiring board with a 16-pin connector. Trane Supply lists the part with the description "CONTROL; ICM FAN, PWB, 16 PIN" and files it under Furnace Control Boards.
Trane CNT03797 control board (50A55-3797 aftermarket). 120V integrated furnace control for Trane and American Standard systems. Replaces dozens of CNT numbers.
Trane CNT05001 defrost control board for heat pumps. Controls defrost cycle timing to prevent frost buildup on outdoor coil. OEM Trane part.
Trane CNT05165 control board (50A65-5165 aftermarket). 80V HSI integrated furnace control for Trane and American Standard systems. Replaces CNT03076 and more.
Trane CNT05482 defrost control board for heat pumps. Controls defrost cycle timing to prevent frost buildup on outdoor coil. OEM Trane part.
Trane CNT07737 OEM control board for furnaces with constant torque motors. Replaces CNT04711. Fits TUD1C series and similar Trane/American Standard models.
Trane CNT09646 (replaces CNT07639, CNT07872) OEM control board for S8X1 series furnaces. Manages ignition, blower, and system safety for Trane furnaces.
Trane CNT09648 OEM control board for A801X series furnaces. Replaces earlier CNT07940 revision. Full system management with LED diagnostic codes.
Carrier HK32EA007 defrost control board for heat pumps. Manages defrost cycles to prevent coil freezing. Replaces HK32EA001. OEM Carrier/Bryant/Payne.
Defrost control board for Carrier, Bryant and Payne heat pumps, recorded internally as 1185790. The board times and terminates the defrost cycle, switching the reversing valve and cycling the outdoor fan based on the defrost thermostat and accumulated run time.
The control board is the "brain" of your furnace or air handler. It manages the startup sequence, monitors safety switches, and controls blower speeds.
Power surges and lightning strikes are common causes of board failure in Dallas. A surge protector can prevent future damage.