HVAC Code Lookup

Carrier Furnace Code 14

Soft lockoutShown as: 1 short flash, 4 long flashes

Ignition lockout. The furnace failed to ignite the gas and prove flame in four attempts. The control locks out and auto-resets after 3 hours.

Manual wording: “14 IGNITION LOCKOUT - System failed to ignite gas and prove flame in 4 attempts. Control will auto-reset after 3 hours. See status code 34.”

Documented for: 58SC0A, 58MCB, 58MVP, 58UVB

Likely causes, most common first

  1. Igniter or flame sensor problem (see code 34 for the manual's full list)
  2. Low inlet gas pressure or a closed manual gas valve
  3. Defective gas valve
  4. Loss of control ground continuity

What you can safely check yourself

  • Confirm other gas appliances in the house are working, so you know the gas supply itself is on
  • Turn the furnace off at the service switch for a minute and back on once to force one clean retry

When to call a technician

Ignition lockout is a gas-side fault. Diagnosing the igniter, flame sensor, gas valve, and gas pressure requires a technician - do not attempt to clean or move the flame sensor yourself.

A Carrier furnace throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.

Sources

Other Carrier codes