the yellow finish on this spring indicates a field-adjustable range of 15" to 30" WC

The switch typically trips due to a blocked flue

Heavy-Duty Construction: Features 35" leads and rugged sensor housing built to withstand harsh outdoor environments and vibration

Direct OEM Compatibility: Eliminates the need for bracket modifications or shaft adjustments

the Reznor 101889 is specifically rated for 28V to ensure longevity against the voltage fluctuations common in high-output industrial heaters

Carrier 327266-753 Blower Housing 30067439-890 the yellow finish on thisThe Carrier 327266 753 Blower Housing is a critical OEM replacement part engineered to maintain structural integrity and air delivery efficiency in high performance Carrier and Bryant furnace systems. This heavy duty steel housing serves as the primary enclosure for the blower wheel and motor assembly, providing the necessary volute geometry to convert kinetic energy into static pressure. By ensuring precise blower alignment and containing forced air