- This is a brand new OEM York furnace flame sensor part number: S1-02537499000. Made in the U.S.A.
- The S1-02537499000 is a popular furnace flame sensor. The “S1” stands for “Source One” HVAC Parts.
- The S1-02537499000 York furnace flame sensor is approximately 3 3/8″ long over-all length which includes the wire connection terminal. The metal flame sensor end is 1 3/4″ long and the white ceramic part of the flame sensor is: 1″ long.
- This flame sensor comes in a sealed factory Source 1 parts bag.
- The “S1” in front of the part number stands for “Source One.” They are a top manufacturer of HVAC parts.
- FYI: The most common problem that we see when a flames sensor is not working properly is: The furnace main gas burners ignite, the main gas burners stay on for only 8 to 10 seconds, then the burners shut right back off.