Carrier Error Code 14: Ignition Lockout
LED Blink Pattern
1 short blink, 4 long blinks.
How to Fix Carrier Code 14
- Step 1: Ensure that the manual gas shutoff valve located near the furnace is fully open. The handle should be parallel to the gas pipe.
- Step 2: Check the furnace filter and replace it if it's dirty. A clogged filter can restrict airflow and affect combustion.
- Step 3: Do not attempt to restart the furnace. Call a qualified HVAC technician to inspect the system and diagnose the problem.
How to Reset Carrier Code 14
- Turn off the furnace power switch, usually located on or near the unit.
- Turn off the circuit breaker for the furnace. Wait 30 seconds.
- Restore power at the breaker and flip the furnace switch back on.
- Set the thermostat to call for heat. If the error code returns after 2-3 ignition attempts, the fault requires repair.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Carrier Error Code 14 Mean?
The Carrier error code 14, also known as an ignition lockout, means your furnace tried to ignite the burners multiple times but failed. After several unsuccessful attempts, the control board locks out the system as a safety precaution. This prevents the continuous flow of gas into the combustion chamber, which could create a dangerous situation. This lockout requires manual reset in some cases, but should only be done after the underlying problem is resolved. Several factors can cause this issue, ranging from a faulty gas valve to a blocked flue. Because this code indicates a potential safety hazard related to gas flow and combustion, it's important to have a qualified HVAC technician diagnose and repair the problem. Do not attempt to troubleshoot gas-related components yourself.
Common Causes
- Faulty or closed manual gas shutoff valve
- Defective gas valve
- Blocked or restricted flue
- Failed flame sensor
- Weak igniter
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| Gas valve is receiving 24VAC during ignition sequence | Measure voltage at the gas valve terminals using a multimeter | 24VAC |
| Flame sensor is clean and properly positioned | Inspect the flame sensor for carbon buildup and proper placement in the flame | Clean sensor, properly positioned |
| Igniter glows during startup | Visually inspect the igniter during startup | Bright orange glow |
Applicable Carrier Models
- 24ABC6 Air Conditioner(electric)
- 25HBC5 Heat Pump(electric)
- Base Series(gas)
- Base Series Furnace(gas)
- Comfort 80 Gas Furnace(gas)
- Comfort Series(electric)
- Comfort Series Furnace(gas)
- Comfort Series Heat Pump(electric)
- Infinity 20 Heat Pump with Greenspeed Intelligence(electric)
- Infinity 80(gas)
- Infinity Series(electric)
- Infinity Series Furnace(gas)
- Infinity Series Heat Pump(electric)
- Performance Boost 95 Furnace(gas)
- Performance Boost Furnace(gas)
- Performance Series(gas)
- Performance Series Furnace(gas)
- Performance Series Heat Pump(electric)
- WeatherMaker 8000(gas)
- WeatherMaker 9300(gas)
- WeatherMaker Furnace(gas)
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Gas Valve | — | — | — |
| Flame Sensor | — | — | — |
| Hot Surface Igniter | — | — | — |
Related Codes on Same Models
Other codes that affect the same Carrier model families as 14.
| Code | Description | Severity |
|---|---|---|
| 11 | No Previous Error | Info |
| 12 | Blower On After Power Up | Warning |
| 13 | Limit/Rollout Fault | Critical |
| 21 | Gas Heating Lockout | Critical |
| 22 | Abnormal Flame | Critical |
| 23 | Pressure Switch Fault | Warning |
| 31 | High Stage Pressure Fault | Warning |
| 32 | Low Flame Sense | Warning |
| 33 | Limit/Rollout Switch Lockout | Critical |
| 34 | Ignition/Flame Sense Fault | Warning |