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.
50F06-843 – CONTROL BOARD (UNIVERSAL, ST9120)
$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.
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
Description
If your furnace blower won’t start or the fan timing is off, a universal fan timer board can replace the failed OEM board in most single-stage gas furnaces. This board replaces over 150 different OEM part numbers, including the Honeywell ST9120 series.
Specs: Universal electronic fan timer control board, single-stage furnace compatible, replaces 150+ OEM models
Replaces: 50F06-843, ST9120U1011
Fits: Single-stage gas furnaces from Carrier, Goodman, Rheem, Trane, Lennox, York, and most other brands.
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.
