Carrier Error Code 32: Low Flame Sense
How to Fix Carrier Code 32
- Step 1: Check your furnace filter. A dirty filter restricts airflow, which can affect the burner flame. Replace it if needed.
- Step 2: Ensure the furnace's gas supply is turned on. Check the shut-off valve near the furnace and the main gas supply to your home.
- Step 3: Reset the furnace by turning off the power at the breaker for a minute, then turning it back on. If the error persists, call a qualified HVAC technician.
What Does Carrier Error Code 32 Mean?
The Carrier error code 32, or a blinking LED pattern indicating 'Low Flame Sense,' means the furnace's control board isn't detecting a stable flame after ignition. The furnace goes through its normal start-up sequence, the gas valve opens, and the burners light. However, the flame sensor, a small metallic rod in the flame, isn't sending a strong enough signal back to the control board to confirm the flame is present. Because the furnace cannot reliably verify the flame, it shuts down as a safety precaution. This issue can stem from a few different problems, ranging from a dirty flame sensor to a more serious gas supply issue. Because gas furnaces are involved, it's important to address this issue promptly to ensure safe and reliable heating.
Common Causes of Carrier Code 32
- Dirty or corroded flame sensor
- Weak flame signal due to improper grounding
- Faulty flame sensor
- Low gas pressure
- Defective gas valve
Applicable Carrier Models
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