Carrier EF680019 Gas Valve

The Carrier EF680019 Gas Valve is a critical OEM replacement component engineered for high-performance gas regulation in Carrier, Bryant, and Payne furnaces. This single-stage, 24V gas valve is factory-calibrated to a 3.5" WC (Water Column) manifold pressure, ensuring precise fuel delivery for optimal combustion efficiency. Designed with a 1/2" x 3/4" NPT connection configuration, it serves as a direct drop-in replacement for aging or failed HVAC gas valves, minimizing downtime during emergency service calls. The robust internal solenoid construction is built to handle the cycling demands of residential and light commercial heating systems, providing the reliable ignition and shut-off transitions that veteran technicians expect from genuine Carrier furnace parts. Whether you are troubleshooting pilot light failures or inconsistent manifold pressures, this valve provides the exact technical specifications required to restore factory-standard performance and safety to the heating circuit.

• Precise Pressure Regulation: Pre-set at 3.5" WC for natural gas applications to maintain consistent burner flame stability.
• OEM Compatibility: Specifically designed for Carrier heater models, ensuring the electrical leads and mounting dimensions match original equipment.
• Reliable 24V Operation: Standard 24V furnace control voltage integrates seamlessly with existing integrated furnace controllers (IFC).
• Optimized Flow Rate: The 1/2" inlet and 3/4" outlet sizing supports high-demand heating cycles without significant pressure drop.
• Enhanced Safety: Redundant internal seats provide positive shut-off and prevent gas migration when the system is in standby mode.

Is the Carrier EF680019 compatible with propane (LP) systems?
This valve is typically configured for natural gas at 3.5" WC. For LP gas conversion, a specific manufacturer-approved conversion kit containing the correct spring and orifice must be installed by a qualified technician.

What are the symptoms of a failing EF680019 valve?
Common indicators include the furnace failing to ignite despite a glowing hot surface igniter, intermittent "gas valve circuit" fault codes on the control board, or inconsistent manifold pressure readings during a combustion analysis.

Can I use this to replace a valve with a different pipe size?
This part features a 1/2" x 3/4" connection. It is essential to verify the existing gas line dimensions; while bushings can be used in some scenarios, maintaining the OEM gas valve specifications is recommended for safety and proper flow.

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.