Why is my blower fan running constantly but the furnace isn't heating

It is recommended to inspect your existing silicone tubing for cracks or moisture blocks when installing the new switch

Key Benefits Precise OEM Specifications: Guarantees technical compatibility with HC21ZE121 and HC21ZS122 series inducer motors

Streamlined Installation: Compact chassis-mount form factor and spade terminals allow for rapid field replacement by contractors

this Sporlan Catch-All drier is optimized for HFC

Williams P271100 Flame Sensor Why is my blower fanThe Williams P271100 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in Williams Forsaire counterflow furnaces. This sensor acts as the primary safeguard for the ignition sequence, utilizing a heat resistant probe to detect the presence of a burner flame. By communicating a microamp signal back to the integrated furnace control, it ensures that the gas valve remains energized only when a steady flame is