Williams P323031 Limit Switch

The Williams P323031 Limit Switch is a critical genuine OEM replacement part engineered specifically for technical compatibility with Williams Comfort Products floor furnaces. This fixed-temperature 95°F limit switch serves as a primary safety control, monitoring the internal cabinet air temperature to prevent heat exchanger damage and system overheating. As a vital component for gas furnace safety control, it initiates a circuit break if temperatures exceed the factory-defined threshold, ensuring the unit remains within safe operational parameters.

Designed for field durability, this Williams furnace replacement part is compatible with the 4505 and 6505 Series floor furnaces. Because it is an OEM HVAC component, it maintains the precise calibration required for these specific gravity-vented systems, regardless of the fuel type or installation elevation. For technicians troubleshooting a furnace that is short-cycling or failing to stay lit, replacing a worn high limit safety switch with this factory-authorized part is essential for restoring reliable furnace performance and meeting local mechanical codes.

Technical Benefits for Contractors:

• Direct OEM Fit: Ensures seamless integration with Williams P323031 specifications, eliminating the need for mounting modifications.
• High-Accuracy Thermal Sensing: Factory-set to 95°F to provide responsive protection against thermal overloads.
• Universal Fuel Compatibility: Specialized design functions reliably in both Natural Gas and Liquid Propane configurations.
• Cabinet Internal Mounting: Engineered to withstand the specific airflow pressures and heat profiles found within 4505 and 6505 series cabinets.

Common Technical Questions:

Where is the P323031 limit switch located?
This component is positioned inside the furnace cabinet where it can directly monitor ambient internal temperatures to protect the assembly from excessive heat buildup.

Will this switch work with different altitudes?
Yes, this Williams Comfort Products part is designed to operate accurately regardless of the installation elevation, provided the furnace itself is properly derated for high-altitude use.

Can I use a generic 95-degree switch instead?
Using an OEM furnace limit switch is highly recommended to ensure the mounting footprint and thermal response curve match the original safety specifications of the floor furnace.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.