Carrier Furnace Code 14.2
Safety faultShown as: Major code 14 flashed on the LED (1 short, 4 long); 14.2 on the 3-digit display
Flame lost lockout. The flame signal was lost three times after the heating blower on-delay. The control auto-resets after 3 hours.
Manual wording: “14.2 FLAME LOST LOCKOUT - Flame signal was lost 3 times after heating blower on delay. Control will auto-reset after 3 hours. See status code 34.3.”
Documented for: 58SC0B/58SC1B
Likely causes, most common first
- Incorrect manifold pressure or gas firing rate
- Gas inlet pressure fluctuations
- Flame sensing problem - see code 34
What you can safely check yourself
- Check that the furnace filter is clean and vents are open, since airflow problems can disturb the flame
When to call a technician
Losing an established flame repeatedly is a combustion problem. Have a technician check manifold pressure, gas supply pressure, and the flame sensing circuit before running the furnace.
A Carrier furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Source
- Installation, Start-Up, Operating and Service and Maintenance Instructions - 58SC0B/58SC1B (Carrier, 58SC0B/58SC1B single-stage condensing gas furnace with 3-digit status display) · checked 2026-08-25