Product Overview
Williams replacement Flame Sensor for several Forsaire Furnaces.
Models include both Top Vent and Direct Vent models:
- Forsaire Counterflow Top Vent, 3508, and 5508 models
- Forsaire Counterflow Direct Vent, 4007 and 5507 models
Click here to download the replacement parts lists and exploded view diagrams. Please refer to the appropriate section for your specific furnace.