Lochinvar & A.O. Smith 100208404 Pressure Switch Freon provided the FLA ratings are

provided the FLA ratings are strictly observed

using this factory-spec part ensures the ignition control board and pilot assembly maintain electrical continuity and peak combustion efficiency

Backwards Compatibility: Certified to replace older York rollout switch part numbers

Common Questions: Can this valve replace a Honeywell VR8200 series

Lochinvar & A.O. Smith 100208404 Pressure Switch Freon provided the FLA ratings areThe Lochinvar & A. O. Smith 100208404 Pressure Switch is a critical safety component designed for high efficiency water heaters and boilers. As a genuine OEM replacement part, it is functionally identical to the PRS2704, ensuring a precise fit and reliable performance for troubleshooting blocked flue or venting issues. This differential air pressure switch monitors the pressure across the combustion blower to verify proper airflow before allowing the