it should show 0 ohms at room temperature

Engineered for durability

Is this an OEM replacement part

The compact design and tab-to-screw terminal adapters ensure an efficient on-job replacement process for technicians

which can interfere with the seal or contaminate the condensate return line

Rheem-Ruud 42-105601-20 Pressure Switch it should show 0 ohmsThe Rheem Ruud 42 105601 20 Pressure Switch is an essential safety component designed for specific furnace and air handler applications. This single pole single throw (SPST) switch is factory calibrated to a 0. 45" WC set point, ensuring precise monitoring of combustion blower performance and venting integrity. As the direct replacement for 42 24335 20, this genuine OEM part maintains system UL certification and prevents furnace operation during