- The 02530788700 York Furnace Flame Sensor has replaced furnace flame sensor part number 02530788000.
- The S1-02530788700 is brand new York furnace flame sensor that comes in a sealed OEM factory Source 1 parts bag.
- The over-all length of this flame sensor is 5 1/8″. The white ceramic is 2 3/4″ long. The exposed metal flame sensor end is 1 3/4″ long.
- 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.