ensure the actual size matches the cabinet rails before sliding the new cartridge into place to avoid air bypass

OEM Reliability: Built to factory specifications

It is professional practice to inspect the start capacitor for proper microfarad output and replace it if it shows signs of leakage or deviates from its rated capacitance

It also features a replacement seat disc and essential O-rings to refresh the internal seals between the valve bonnet and body

Reznor 207178 Pressure Switch 319852-301 ensure the actual size matchesWhen you're troubleshooting a Reznor unit and the burner refuses to fire, the Reznor 207178 Pressure Switch is often the first place to check. This 0. 20" WC pressure switch is a critical safety component designed to verify that the inducer motor is creating the proper negative pressure before allowing the ignition sequence to proceed. As a genuine Reznor OEM replacement part, it ensures your heating equipment maintains factory spec safety standards