OEM Carrier Combination Gas Valve 24V 1/2" for Model YAC48110YACX204AC

This OEM combination gas valve (part# EF680015) is the factory-specified replacement for the Carrier YAC48110YACX204AC packaged gas/electric unit. The gas valve is the heart of your furnace's fuel delivery system — it receives a 24V signal from the control board, opens to allow regulated gas flow to the burners, and closes immediately upon a call-for-heat ending or a safety lockout. When this valve fails, symptoms include no heat despite igniter glow, furnace lockout after repeated ignition attempts, or a complete absence of gas flow to the burner assembly. Do not operate a unit with a suspected faulty gas valve — replace it promptly to restore safe, efficient heat.

• Specs: 24V AC coil | 1/2" inlet × 1/2" outlet | Single-stage slow-opening | Compatible with Natural Gas and LP (with conversion kit) | 3.0"–3.5" W.C. outlet pressure | 0.28A draw at 50/60 Hz
• OEM vs Generic: This is a genuine OEM Carrier part engineered to exact factory tolerances. Generic valves often lack precision pressure regulation, risking improper gas flow rates, nuisance lockouts, and potential safety hazards. OEM is always the recommended choice for gas-carrying components.
• Install difficulty: 3/5 — Shut off gas supply and 24V power before starting. Tools needed: adjustable wrench, pipe thread sealant (gas-rated), multimeter, and manometer to verify outlet pressure after installation. Always leak-test all connections with an approved solution before restoring power. A licensed HVAC technician is recommended for gas valve replacement.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Engineered for the Carrier YAC48110YACX204AC packaged unit. Verify your unit's gas type (natural gas or LP), inlet/outlet pipe diameter, and control voltage on the data plate before ordering. Our fitment team is available to confirm compatibility before you buy — ships same day, every day.