Carrier Furnace Error Code 14

Ignition lockout; system failed to ignite gas and prove flame in 4 attempts; control will auto-reset after three hours.

First step from the service manual

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

• 11No previous code stored; stored status codes are erased…
• 12Blower runs for 90 seconds after power up if unit is…
• 13Limit circuit lockout occurs if the limit, draft safeguard…
• 21Gas heating lockout; control will NOT auto-reset.
• 22Abnormal flame-proving signal; flame is proved while gas…
• 23Pressure switch did not open.
• 24Secondary voltage (24VAC) fuse is open.
• 31Pressure switch did not close or reopened; if open longer…