Williams Furnace Limit Switch Boiler Safety Controls & Aquastats

Williams furnace limit switches are replacement safety controls for Williams wall, floor and top vent furnaces. Also called vent limit switches, vent safety switches or furnace high-limit switches, they help keep your heating system from overheating. They also guard against venting problems.

Key Features:

• Overheat protection: Monitors furnace or vent temperature and shuts the furnace off when it reaches an unsafe level.
• Automatic safety shutdown: Responds to improper venting or excessive heat to help protect internal components.
• Replacement design: Direct-replacement limit switches for specific Williams furnace series, including Forsaire, Monterey and floor furnace lines.
• Dependable construction: Built to handle the high operating temperatures found in furnace cabinets and vents.

Williams has made heating products for nearly 100 years and is known for safety-tested, cost-efficient home heating. Installation by a qualified HVAC technician is recommended so the safety control works as intended. Select the specific part number in this product line that matches your furnace.