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If your furnace blower runs continuously while the burners fail to ignite
Cost Efficiency: Extends the service life of existing brass or stainless steel valve bodies in commercial cooling infrastructures
Versatile Compatibility: Standard 1/2" union solder connection facilitates seamless integration into existing copper boiler lines
providing a direct-swap solution for Barber Colman systems without the need for additional 1/4" barb adapters or mounting modifications
Lochinvar & A.O. Smith 100208404 Pressure Switch Els PW 29614 If your furnace blower runsThe 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
