Bradford White 415-45867-05 Pressure Switch Kit

The Bradford White 415-45867-05 Pressure Switch Kit is the OEM blower-proving pressure switch for Bradford White residential gas power vent water heaters. It is a differential pressure switch in the safety circuit: it senses the negative pressure the power vent blower creates and only closes its contacts once real combustion airflow is proven, which is what allows the gas valve to open and the burner to light. If the vent is blocked, the blower is weak, or the switch itself has failed, the circuit stays open and the heater will not fire. This kit is shown with its formed steel mounting bracket.

Bradford White's March 2026 residential gas power vent parts list specifies 415-45867-05 as the pressure switch for the RG1PV40S, RG1PV50S, RG2PV40T, RG2PV50T, RG2PV60T, RG2PV40S and RG2PV50S models, where earlier parts books listed 415-45867-01 or 415-47815-03. Those models run the 415-53662-00 blower with the 415-53692-00 blower temperature switch and 415-53693-00 blower gasket. It belongs to the 415-45867 switch family, which is calibrated by dash number: 415-45867-06 (-0.88" W.C.) and 415-45867-07 (-0.96" W.C.) serve the larger RG2PV50H and RG2PV75H heaters, and 415-45867-01 and 415-45867-02 are separate set points again. Match the dash number stamped on the old switch.

Key Benefits

• Correct Switch for RG1PV / RG2PV Power Vent: The factory-specified pressure switch for the 40, 50 and 60 gallon RG1PV and RG2PV models listed above.
• Proves Blower Airflow Before Ignition: Keeps the gas valve locked out until the blower is pulling the vent — the reason this switch exists.
• Bracket-Mount Design: The factory mounting bracket lets the switch bolt into the same position as the original.
• Genuine OEM: Bradford White calibration and construction, not a universal SPST pressure switch.

Common Questions

• What does this switch do on a power vent heater? It confirms the blower is creating the required negative pressure in the vent before the ignition sequence continues. No proven draft, no gas.
• The blower runs but the heater won't light — is it the switch? Check the sensing tube for cracks, kinks or moisture, and check the vent and air intake for blockage first. If the blower runs, the tube is clear and the vent is open but the switch never closes, replace the 415-45867-05. Never jumper a pressure switch.
• Can I use a 415-45867-06 or -07 instead? No. Those carry different W.C. set points for different heaters. Use the number specified for your model.

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.