Before replacing the board, count the LED blinks — the error code tells you what actually failed. Sometimes it’s a $15 fuse, not a $140 board.
CNT05165 – CONTROL BOARD (TRANE, 80V HSI, AFTERMARKET, DIRECT, 50A65-5165)
$195.70
Trane CNT05165 control board (50A65-5165 aftermarket). 80V HSI integrated furnace control for Trane and American Standard systems. Replaces CNT03076 and more.
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm | In-Store Pickup Only
Description
If your furnace won’t ignite, shows error codes, or the blower won’t start, the control board controls all of it. The CNT05165 is an integrated furnace control for Trane and American Standard furnaces using 80V hot surface ignitors. The 50A65-5165 is the aftermarket replacement.
Specs: 80V HSI integrated furnace control, 50A65-5165 aftermarket equivalent
Replaces: CNT03076, CNT03798, CNT05164, CNT05165, 50A65-474, 50A65-475, 50A65-476, 50A65-5165, D341213P01, D341396P01
Fits: Trane: TUD100C945K2 and similar models; American Standard gas furnaces using 80V HSI 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.
