Williams P323096 Fan Switch

The Williams P323096 Fan Switch is an essential OEM replacement component engineered for precision blower control in Williams Vented Room Heaters and Hearth Heaters. Designed specifically for integration with Williams Blower Accessory models 2101 and 2102, this switch manages the fan cycle to prevent the distribution of cold air during initial startup. By delaying blower activation until the heat exchanger reaches the appropriate temperature—typically around 120°F—this furnace fan limit control ensures consistent occupant comfort and thermal stability. This HVAC blower switch is a direct-fit solution for maintaining the combustion chamber efficiency and protecting the motor from short-cycling. For technicians performing wall heater troubleshooting, replacing a sticky or failed Williams P323096 restores the automatic "fan on" and "fan off" logic required for safe and quiet heater operation. This heavy-duty bimetal control is built to handle the thermal expansion and contraction cycles common in gravity-vented and counterflow units.

• OEM Compatibility: Exact replacement for Williams burner assembly and blower kits 2101/2102.
• Thermal Efficiency: Regulates the fan delay to ensure only heated air is circulated into the living space.
• System Longevity: Helps prevent blower motor fatigue by maintaining proper operational cycles based on plenum temperature.
• Quiet Operation: Eliminates the rattling or inconsistent fan speeds associated with failing mechanical switches.

How do I know if my Williams fan switch is bad?
If your blower motor runs continuously even when the heater is off, or if the fan fails to engage after the burner has been firing for several minutes, the bimetal sensor in the switch has likely failed or drifted out of calibration.

Is the P323096 compatible with all Williams Forsaire models?
This specific part is designated for blower assemblies 2101 and 2102. Always verify your heater's model number and the accessory part list, as counterflow and direct-vent models may use different limit controls.

Does this switch require professional calibration?
The Williams P323096 Fan Switch is factory-set for standard operation within Williams vented units. However, ensure the 120V power is disconnected before installation to prevent electrical shock or damage to the gas valve circuit.

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.