Description
Utica-Dunkirk AC-3940-47 Flame Sensor Kit Overview
The Utica-Dunkirk AC-3940-47 Flame Sensor Kit is a genuine OEM replacement part engineered to maintain safe and reliable burner operation in compatible Utica-Dunkirk heating systems. The flame sensor plays a critical role in your heating system’s safety circuit — detecting the presence of a burner flame and signaling the control board to allow continued gas valve operation. A failed or degraded flame sensor can cause nuisance lockouts, delayed ignition, or unsafe operating conditions, making timely replacement essential.
Key Features
- Genuine Utica-Dunkirk OEM replacement flame sensor kit
- Designed for precise fit and function in compatible Utica-Dunkirk boiler and heating systems
- Ensures accurate flame detection to support safe burner operation
- Helps eliminate nuisance lockouts caused by worn or contaminated sensors
- Supports the system’s safety control circuit for reliable ignition sequences
- Direct OEM replacement for straightforward installation
Why Replace Your Flame Sensor?
Over time, flame sensors can accumulate oxidation or carbon buildup on the sensing rod, reducing their ability to accurately detect a flame. This can cause the control board to shut down the burner prematurely, resulting in repeated lockout faults and loss of heat. Replacing the flame sensor with a genuine Utica-Dunkirk part restores proper system communication and ensures your heating equipment operates safely and efficiently.
Compatibility
- Designed for use with compatible Utica-Dunkirk boiler and heating equipment
- Refer to your equipment’s service manual or contact a qualified HVAC technician to confirm fitment prior to installation
Product Details
- Brand: Utica-Dunkirk
- Part Number / SKU: AC-3940-47
- Part Type: Flame Sensor Kit
- OEM Replacement: Yes
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