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

If your furnace won’t ignite, shows error codes, or the blower won’t start, the control board controls all of it. The CNT03797 is a 120V integrated furnace control for Trane and American Standard gas furnaces. The 50A55-3797 is the aftermarket direct replacement. Replaces many earlier Trane CNT-series boards.

Specs: 120V integrated furnace control, 50A55-3797 aftermarket equivalent

Replaces: 50A50-405, 50A50-473, 50A50-571, 50A55-3797, 50A55-474, 50A55-476, 50A55-480, 50A55-486, 50A55-571, CNT02181, CNT02182, CNT02183, CNT02789, CNT02891, CNT03606, CNT03797, CNT03799, CNT07541, CNT07941, CNT2182, CNT2789, CNT3797, CNT7541, CNT7941, CUB040A924C4, D330930P01, D341122P01, D341235P01, D341235P03, TDE100A945L1, TDE100A945M0, TUD100C960H5, TUE060A936K0, TUE060A936KO, TUE060A936L1, TUE080A936K2, TUE100A948L3

Fits: Trane and American Standard gas furnaces using 120V ignition control boards

Need help? See our Furnace Not Heating Guide.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 50A50-405
• 50A50-473
• 50A50-474
• 50A50-571
• 50A55-3797
• 50A55-474
• 50A55-476
• 50A55-480
• 50A55-486
• 50A55-571
• CNT02181
• CNT02182
• CNT02183
• CNT02789
• CNT02891
• CNT03606
• CNT03799
• CNT07541
• CNT07679
• CNT07941
• CNT07943
• CNT2182
• CNT2789
• CNT3797
• CNT7541
• CNT7941
• CUB040A924C4
• D330930P01
• D330934P01
• D341122P01
• D341235P01
• D341235P03
• FURNACE-CONTROL-BOARD
• TDE100A945L1
• TDE100A945M0
• TRANE-CONTROL-BOARD
• TUD100C960H5
• TUE060A936K0
• TUE060A936KO
• TUE060A936L1
• TUE080A936K2
• TUE100A948L3

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• TUE1A060A9361AB