OEM Carrier Gas Valve 24V 1/2" Natural/LP for Model YAC48110YAC304AC — Part #EF680015

This OEM combination gas valve is the factory-specified replacement for the Carrier YAC48110YAC304AC packaged unit. The gas valve is the heart of your system's heating circuit — it receives a 24V signal from the control board and opens to allow precisely regulated gas flow to the burner assembly. When it fails, the unit will attempt ignition but produce no flame, lock out after repeated attempts, or deliver inconsistent heat. A faulty valve is one of the most common root causes of a complete no-heat call and should always be confirmed with a multimeter and manometer before replacement.

• Specs: Part # EF680015 | 24V AC coil voltage | 1/2" inlet × 1/2" outlet | Single-stage | Natural Gas with LP conversion compatibility | Slow-opening valve design for safe, controlled ignition
• OEM vs Generic: This is a genuine Carrier OEM gas valve built to exact factory tolerances for gas pressure regulation and coil actuation voltage. Aftermarket valves may not meet the precise W.C. outlet pressure spec of your burner orifice, risking incomplete combustion or nuisance lockouts.
• Install difficulty: 4/5 — Gas valve replacement involves working on a live gas line and must be performed by a licensed HVAC technician or gas fitter. Required tools: manifold gauge set or manometer, pipe wrenches, gas leak detector solution or electronic sniffer, 1/4" nut driver, and a multimeter to confirm 24V coil signal before installing. Always shut off the manual gas shutoff upstream and verify zero pressure before disconnecting.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed for the Carrier YAC48110YAC304AC packaged unit. Verify inlet/outlet pipe size, operating voltage, and gas type on your unit's data plate before ordering. Cross-reference part number EF680015 against your equipment label to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you order — order with confidence and get your system heating again today.