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White Rodgers 50A55-3797, 50A55-474 Furnace Control Board, Replacement for Trane Single Stage CNT02891 CNT03797 CNT02789 Integrated Furnace Control, 120V Ignitor

4.9 (4) Write Review
Free shipping on orders over $29.99

$75.00

$ 31 .99 $31.99

In Stock

About this item

  • This furnace control board is compatible with White-Rodgers 50A55-3797, 50A55-474,50A55-476 , 50A55-571. And replacement for Integrated Furnace Control Board CNT02891, CNT03799, CNT02789.
  • The 50A55-3797 Furnace Control Board is an automatic gas interrupted ignition control that employs a microprocessor to continually monitor ,analyze, and control the proper operation of the gas burner, inducer, and fan.
  • Input Voltage: 25 VAC 50/60 HZ. Max. Input Current at 25 VAC :0.45 amp. Relay Load Ratings: Valve Relay: 1.5 amp at 25 VAC 50/60 Hz 0.6 pf. Ignitor Relay: 6.0 amp at 120 VAC 50/60 Hz (resistive) Inducer Relay: 2.2 FLA- 3.5 LRA at 120 VAC Circulator Relay: 14.5 FLA-25.0 LRA at 120 VAC.
  • The 50A55-3797 control continuously monitors its own operation and the operation of the system. If a failure occurs, the LED will indicate a failure code as shown in Troubleshooting section. If the failure is internal to the control, the light will stay off. In this case, the entire control should be replaced, as the control is not field-repairable.
  • Note: to save yourself some hassle, please take a picture of the old one before removing it,make sure getting the wires on the correct terminals.Please feel free to contact us if you have any questions about our products, your satisfaction would be our greatest motivation.


This furnace control board is compatible with White-Rodgers 50A55-3797, 50A55-474,50A55-476 , 50A55-571. And replacement for Integrated Furnace Control Board CNT02891, CNT03799, CNT02789.


Fidel Bustos
August 16, 2025
This control board was the solution for my furnace, very reasonable price
Kaleen
August 13, 2025
Plug and play. Done
Clif
March 10, 2025
Installing was easy. Just move each wire termenation from the old board to the new board one at a time. Turn on power and Shazam, it works perfectly.
Melissa Canterbury
December 4, 2024
Installed and blower motor runs continuously , when there is a call for heat it won’t light on 1st try usually will light on 2nd ignition cycle
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